СИСТЕМА И СПОСОБ ОПРЕДЕЛЕНИЯ ПОЛОЖЕНИЯ БЕСПРОВОДНОГО ПРИЕМОПЕРЕДАТЧИКА СИСТЕМЫ МНОЖЕСТВЕННОГО ДОСТУПА С КОДОВЫМ РАЗДЕЛЕНИЕМ КАНАЛОВ

Изобретение относится к системам связи. Достигаемым техническим результатом является быстрое, точное и экономичное определение местоположения сотового телефона. Изобретение объединяет технологии определения положения с помощью ГСП (Глобальной Системы Позиционирования) и беспроводной связи для обеспечения точного определения положения в условиях города и иных средах, где зона прямой видимости спутников в некоторой степени затенена. Устройство и способ, соответствующие изобретению, предусматривают использование сигналов только двух спутников ГСП и обслуживающей базовой станции. В наиболее широком аспекте способ, соответствующий изобретению, включает этапы приема на базовой станции первого сигнала, передаваемого с первого спутника ГСП, и второго сигнала, передаваемого со второго спутника ГСП. Передатчик и приемник мобильной станции обеспечивают прием этих сигналов ГСП и передачу в ответ на них третьего сигнала на базовую станцию. Базовая станция принимает третий сигнал и использует его для ...

СИСТЕМА КОРРЕКЦИИ ШКАЛ ВРЕМЕНИ ГРУППЫ УДАЛЕННЫХ ЧАСОВ

Использование: изобретение относится к средствам временной синхронизации и передачи сигналов времени потребителям и может быть использовано при решении задач коррекции шкал времени группы удаленных часов относительно шкалы времени центральных часов. Сущность: система коррекции шкал времени группы удаленных часов содержит центральные часы и группу N удаленных часов, связанных с центральными часами каналами передачи данных. Каждые из указанных часов содержат блок формирования собственной шкалы времени, блок приема шкалы времени навигационных космических аппаратов и связанный с ним блок сличения шкал, времени. Центральные часы содержат также вычислительный блок, выполняющий функцию вычислителя поправок к шкалам времени удаленных часов, входной и выходной коммутаторы и блок отбора данных о величинах рассогласования шкал времени первый и второй входы которого связаны, соответственно, с выходом блока сличения шкал времени, входящего в состав центральных часов, и выходом входного коммутатора, ...

СПОСОБ СИНХРОНИЗАЦИИ ШКАЛ ВРЕМЕНИ ДВУХ И БОЛЕЕ ТЕРРИТОРИАЛЬНО УДАЛЕННЫХ НАЗЕМНЫХ ХРАНИТЕЛЕЙ ВРЕМЕНИ И СИСТЕМА ДЛЯ ЕГО РЕАЛИЗАЦИИ

Изобретение относится к космической области техники и может применяться в спутниковых навигационных системах типа ГЛОНАСС, GPS и др. для синхронизации как минимум двух территориально удаленных наземных хранителей времени спутниковой навигационной системы, например центральных синхронизаторов навигационной системы или стандартов частоты и времени. Техническим результатом заявленного изобретения является повышение надежности и точности синхронизации шкал времени территориально удаленных наземных хранителей времени. Система синхронизации шкал времени двух и более территориально удаленных наземных хранителей времени включает:- n≥2 территориально удаленных наземных хранителей времени, каждый из которых снабжен навигационными приемниками спутниковой навигационной системы с измерителем псевдодальности;- n средств выделения из принятого навигационного сигнала эфемеридной информации и экстраполяции ее на момент синхронных измерений псевдодальности;- n средств определения реальной дальности навигационного ...

СПОСОБ И СИСТЕМА СИНХРОНИЗАЦИИ ШКАЛ ВРЕМЕНИ РАЗНЕСЕННЫХ В ПРОСТРАНСТВЕ РАДИОЭЛЕКТРОННЫХ СРЕДСТВ

Группа изобретений относится к области радиотехники и может быть использована в устройствах синхронизации шкал времени разнесенных в пространстве радиоэлектронных средств (РЭС). Технический результат заявляемого изобретения состоит в повышении эффективности синхронизации шкал времени разнесенных в пространстве РЭС за счет одновременного осуществления синхронизации шкал времени разнесенных в пространстве радиоэлектронных средств. 2 н. и 5 з.п. ф-лы, 1 ил.

УСТРОЙСТВО ДЛЯ СРАВНЕНИЯ ШКАЛ ВРЕМЕНИ

Устройство относится к области техники для сравнения и синхронизации шкал времени удаленных объектов с применением оптоволоконной линии связи, соединяющей объекты. Устройство выполнено в виде двух составных частей, размещенных на удаленных друг от друга объектах, содержит на первом объекте два одностоповых таймера событий с подключенными к ним приемниками оптических импульсов. К обоим таймерам событий подключен генератор формирования шкалы времени этого объекта, и они соединены с компьютером, подключенным к системе передачи информации. Генератор оптических импульсов подключен к входу оптоволоконного разветвителя, при этом один выход разветвителя соединен с входом первого приемника оптических импульсов, второй соединен с входом-выходом оптоволоконного циркулятора. Второй приемник оптических импульсов соединен со вторым входом-выходом оптоволоконного циркулятора и вторым таймером событий. Третий вход-выход циркулятора соединен оптоволоконной линией связи со вторым объектом, который также ...

Improvements with the devices of synchronization.

SYNCHRONIZED CLOCK.

NETWORK PARTICIPANT

Multimedia synchronization system

Automatic Time Setting Alarm Clock

Automatic time setting alarm clock is disclosed. This device is an clock with the ability to set the actual time of day automatically and also implements a multiple Alarm capability. It uses the resources of the GPS (global positioning system) system to locate its position on the earth and determine the correct time of day and set the clock time automatically. A multiple alarm capability allows for a number of different alarm time settings, for example one alarm used for: 5am Monday to Friday, second alarm setting used for 6am Saturday. Multiple alarms can be used on the same day, for example one alarm used to wake first partner, and the second alarm used to wake second partner later. Alarms settings can enabled or disabled for any day of the week, for example on a public holiday you simply disable the alarm for that day without effecting the actual alarm time setting. Number of clocks my be setup to work together, with one operating as master clock and others as slave clocks, connected ...

SYNCHRONIZATION AND CALIBRATION OF CLOCKS FOR A MEDICAL DEVICE AND CALIBRATED CLOCK

TIME AND FREQUENCY SYNCHRONISATION OF EQUIPMENT AT DIFFERENT LOCATIONS.

HIGH STABILITY CLOCK SIGNAL REGENERATOR

Multiple input frequency locked loop

A method for synchronising process control events and measurements in a real-time process control automation system

METHOD FOR REFRESHING A RUNNING TIME FOR A SPORTS COMPETITION IN PROGRESS

The method defines the refreshing of at least one running time for a sports competition in progress in at least one receiver device (5, 15), on the basis of data signals (S T) transmitted by a transmitter device (2). The transmitter device (2) may be arranged at the sports competition venue, whereas the receiver device (15) may be relatively far from said sports competition venue. According to the method, data signals (S T) are first of all transmitted from the transmitter device as the sports competition is taking place. These data signals include data about the starting time of at least one competitor, one or several intermediate times and a final finish time. The receiver device (15) receives the data signals (S T) in succession. The receiver device (15) is thus provided for refreshing the running time of the sports competition in progress after a determined temporal lag (.DELTA. t) in said receiver device (5, 15), and following the indication of a starting time in the received data ...

METHOD FOR REFRESHING A RUNNING TIME FOR A SPORTS COMPETITION IN PROGRESS

The method defines the refreshing of at least one running time for a sports competition in progress in at least one receiver device (5, 15), on the basis of data signals (ST) transmitted by a transmitter device (2). According to the method, data signals (ST) are first of all transmitted from the transmitter device as the sports competition is taking place. The receiver device (15) receives the data signals (ST) in succession. The receiver device (15) is thus provided for refreshing the running time of the sports competition in progress after a determined temporal lag (.DELTA.t) in said receiver device (5, 15), and following the indication of a starting time in the received data signals (ST). The running time is then stopped in the receiver device, once the time counted in the receiver device matches the final time in the received data signals.

SYNCHRONIZATION OF REAL-TIME CLOCKS IN A PACKET SWITCHING SYSTEM

SYNCHRONIZATION OF REAL-TIME CLOCKS IN A PACKET SWITCHING SYSTEM A packet switching system in which a remote realtime clock is accurately synchronized to a standard realtime clock via X.25 (CCITT) controlled high-speed transmission links. Synchronization is achieved by the transmission of an interrupt packet and a data packet between a remote processor controlling the remote real-time clock and an administrative processor controlling the standard real-time clock. Synchronization involves the following steps: (1) assembling an interrupt packet comprising the least significant bits of the remote realtime clock for transmission to the administrative processor by the remote processor, (2) calculating bits representing the difference between the transmitted least significant bits of the standard real-time clock by the administrative processor, (3) assembling a data packet comprising bits representing the state of the standard real-time clock and the difference bits for transmission to the remote ...

TIME SYNCHRONISATION, PARTICULARLY FOR SEISMIC WORK

ATOMIC CLOCK BASED ON AN OPTO-ELECTRONIC OSCILLATOR

Opto-electronic oscillators (100) having frequency locking mechanism to stabilize the oscillation frequency of the oscillators to an atomic frequency reference (130). Whispering gallery mode optical resonators may be used in such oscillators to form compact atomic clocks.

DIGITAL SECONDARY CLOCK

TIME SYNCHRONIZATION SYSTEM AND TRANSMISSION APPARATUS

Provided is a system with which time synchronization can be realized for a plurality of devices that are disposed at positions where a GNSS signal cannot be received. A time synchronization system comprises: a reference time acquisition unit that acquires, on the basis of a wireless signal from a positioning satellite system, a first timing signal and time information corresponding to a timing indicated by the first timing signal; a modulation unit that is connected to wiring divided into a plurality of branches, and that generates, in synchronization with the first timing signal, a modulation signal containing the corresponding time information and transmits the modulation signal through the wiring; at least one demodulation unit that is connected to one of the branches of the wiring, and that demodulates the modulation signal propagating through the wiring; and at least one transmission unit that transmits, on the basis of a second timing signal acquired by the demodulation by one of ...

ATOMIC CLOCK BASED ON AN OPTO-ELECTRONIC OSCILLATOR

Opto-electronic oscillators (100) having frequency locking mechanism to stabilize the oscillation frequency of the oscillators to an atomic frequency reference (130). Whispering gallery mode optical resonators may be used in such oscillators to form compact atomic clocks.

ELEKTRONISCHE UHR.

VERFAHREN UND EINRICHTUNG ZUR SYNCHRONISATION FUER NETZBETRIEBENE, BATTERIEGESTUETZTE ELEKTRONISCHE UHREN.

PROGRAMMIERBARE DIGITALUHR.

VERFAHREN ZUR ERZEUGUNG VON ELEKTRISCHEN SCHWINGUNGSSIGNALEN UND VORRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS.

Procédé de chronométrage d'une compétition sportive sur différents sites.

Le procédé de chronométrage est prévu pour une compétition sportive en même temps sur différents sites (4) répartis dans le monde. Dans une première phase, toutes les bases de temps des dispositifs de chronométrage d'un dispositif coordinateur de départ (3) et de chaque site sont synchronisées. Par la suite, une mesure des temps de transmission entre le dispositif coordinateur de départ et chaque site est effectuée pour déterminer un temps de transmission maximum. Le dispositif coordinateur de départ établit un temps de départ égal au temps du jour de chaque site et en ajoutant un écart temporel supérieur au temps de transmission maximum déterminé. Le temps de départ est adapté à chaque site où se déroule la compétition pour commander automatiquement par chaque dispositif de chronométrage, le départ de la compétition en même temps sur chaque site et sur le site de base du dispositif coordinateur de départ pour avoir une compétition sportive se déroulant en direct sur tous les sites de la ...

Drahtlos gesteuerte Uhr

Drahtlos gesteuerte Uhr

Drahtlos gesteuerte Uhr

Groupe horaire de haute précision

Verfahren zur automatischen Regelung von Oszillatoren in Zeitmessgeräten und Anordnung zum Durchführen dieses Verfahrens

Discriminateur d'un signal de minute

Verfahren zur automatischen Regelung von Oszillatoren und Anordnung zum Durchführen dieses Verfahrens

Elektronische Uhr, insbesondere Synchronuhr mit Gangreserve

GARDE-TEMPS COMPRENANT UN DIVISUER DE FREQUENCE AU RAPPORT DE DIVISION AJUSTABLE PAR DES MOYENS L'ETALONNAGE EXTERNES ET PROCEDE DE MISE EN ACTION DE CE GARDE TEMPS.

Schaltungsanordnung zur Standkorrektur einer Hauptuhr, die als nachgeordnete Hauptuhr neben einer übergeordneten Hauptuhr Nebenuhren steuert

PROCEDURE FOR THE PRODUCTION OF ELECTRICAL OSCILLATION SIGNALS AND DEVICE FOR THE EXECUTION OF THE PROCEDURE.

ELECTRONIC WATCH.

PROGRAMMABLE DIGITAL CLOCK.

Electronic watch with means for detecting the movement of a hand through a reference position

CIRCUIT FOR THE PRODUCTION OF A OF OF THE FREQUENCY IN A THREE-PHASE NETWORK OF DERIVED ZEITSIGNALS.

Method and device for synchronising mains-operated electronic clocks having battery back-up

The method and device are intended for two embodiments of mains-synchronised integrated clock circuits (2, 2a), of which one (2) has an input (5) for pulses at mains frequency and an input (R) for resetting pulses, and the second has only one (S)-input. In the event of a mains failure, the clock circuits continue to emit 1 Hz pulses which control the synchronisation after mains voltage has returned. A short mains failure does not impair the synchronisation. The device contains logic circuits (1, 13, 14, 15 or 18) in addition to the clock circuits (2, 2a). The logic circuits (1, 14) consist of at least one D flipflop (5) and an AND gate (6). The clock circuit (2) with a resetting input (R) contains a logic circuit (1) having an input for 1 Hz pulses and a differentiating network (7). The clock circuit (2a) with only one synchronisation input (S) requires a downstream pulse shaper (13) for 1 Hz pulses, a changeover switch (18) switched by the logic circuit (14), and an oscillator (15). Подробнее

MECHANICAL-TO-ELECTRICAL ENERGY CONVERTER

Estimate of the inaccuracy, caused by individual clocks in a clock synchronization network.

Diese Erfindung betrifft ein Verfahren zur Schätzung der Ungenauigkeit des empfangenen Zeitsynchronisierungssignals gemäss der Norm IEEE 1588 oder eines ähnlichen Protokolls bei der Synchronisierung von Uhren über ein Datenübertragungsnetzwerk. Das Verfahren erlaubt es einem Zwischenknoten (2, 3) seinen eigenen Beitrag zur Ungenauigkeit der Synchronisierung zu schätzen, dadurch, dass er die Streuung der Messung der nahezu konstanten Laufzeit zu zumindest einem seiner Nachbarn durch die peer-to-peer Pdelay_Req/Pdelay_Resp Methode erfasst. Diese Streuung wird entweder aus einem Histogramm oder aus einem statistischen Algorithmus z.B. aus der Allan-Streuung (Allan deviation) über ein gleitendes Zeitfenster ermittelt. Der Beitrag des Zwischenknotens zur Ungenauigkeit wird als ungefähr zwei Mal diese Streuung geschätzt und summiert sich zu anderen Ungenauigkeiten, die aus der Konzeption des Gerätes bekannt sind. Dieser Beitrag zur Ungenauigkeit wird in einer kurzen Form anderen Geräten mitgeteilt ...

СПОСОБ СНИЖЕНИЯ НАКАПЛИВАЮЩЕЙСЯ ОШИБКИ СИНХРОНИЗАЦИИ В ЧАСАХ С ПОМОЩЬЮ ПОДСТРОЙКИ ЧАСТОТЫ ГЕНЕРАТОРА

Способ коррекции ошибок отсчета времени часов, работающих от генератора, согласно изобретению включает определение в выбранные моменты времени, посредством приема сигнала эталонного времени, ошибки отсчета времени часов и/или расхождения частот указанного и эталонного генераторов. Определяют изменение ошибки отсчета времени и/или расхождение частот между первым и вторым моментами приемов сигналов эталонного времени. Частоту генератора подстраивают так, чтобы, по существу, устранить накапливающуюся ошибку отсчета времени между вторым моментом приема сигнала эталонного времени и выбранным моментом приема сигнала эталонного времени.

СПОСОБ СНИЖЕНИЯ НАКАПЛИВАЮЩЕЙСЯ ОШИБКИ СИНХРОНИЗАЦИИ В ЧАСАХ С ПОМОЩЬЮ ПОДСТРОЙКИ ЧАСТОТЫ ГЕНЕРАТОРА

Способ коррекции ошибок отсчета времени часов, работающих от генератора, согласно изобретению включает определение в выбранные моменты времени посредством приема сигнала эталонного времени, ошибки отсчета времени часов и/или расхождения частот указанного и эталонного генераторов. Определяют изменение ошибки отсчета времени и/или расхождение частот между первым и вторым моментами приемов сигналов эталонного времени. Частоту генератора подстраивают так, чтобы, по существу, устранить накапливающуюся ошибку отсчета времени между вторым моментом приема сигнала эталонного времени и выбранным моментом приема сигнала эталонного времени.

СПОСОБ ЧАСТОТНО-ВРЕМЕННОЙ СИНХРОНИЗАЦИИ ПРОСТРАНСТВЕННО РАЗНЕСЕННЫХ ЭТАЛОНОВ И СТАНДАРТОВ ВРЕМЕНИ И ЧАСТОТЫ

Способ частотно-временной синхронизации пространственно разнесенных эталонов времени и частоты путем проведения одновременных измерений величин сдвига во времени моментов приема одного и того же фрагмента сигнала геостационарного спутника относительно шкалы времени эталонов в пунктах. В пунктах размещения эталонов осуществляют запись принятого сигнала общего источника на протяжении стробов, начало которых равняется времени задержки сигнала общего источника до соответствующего пункта. После этого проводят обмен записанными фрагментами сигнала общего источника и их взаимокорреляционную обработку, которая позволяет оценить сдвиг шкал эталонов по положению максимума взаимокорреляционной функции относительно середины ее продолжительности, которая равняется двойной длине строба.

СПОСОБ ЧАСТОТНО-ВРЕМЕННОЙ СИНХРОНИЗАЦИИ ПРОСТРАНСТВЕННО РАЗНЕСЕННЫХ ЭТАЛОНОВ И СТАНДАРТОВ ВРЕМЕНИ И ЧАСТОТЫ

Способ частотно-временной синхронизации пространственно разнесенных эталонов и стандартов времени и частоты, согласно которому проводят одновременные в пределах простанственно-временного сдвига измерения величин сдвига во времени моментов приема одного и того же фрагмента сигнала относительно реперных меток времени шкал в пунктах. Осуществляется прием сигнала низкоорбитального или среднеорбитального искусственного спутника Земли, после чего проводится обмен информацией о временном положении отсчетных параметров относительно реперных меток времени шкал в пунктах.

Helicopter simulator clock synchronization method and system

Nuclear power plant clock synchronization system

Global positioning system (GPS) and constant temperature crystal combined accurate synchronization system

Beidou/global position system (GPS) time signal-based time service system for communication network

The invention discloses a Beidou/global position system (GPS) time signal-based time service system for a communication network. The system comprises a power module 1, a Beidou module 2, a GPS module 3, a clock module 4, a master control module 5 and a panel module 6, which are combined into a whole. Beidou/GPS time is used for synchronizing the clock of a constant temperature crystal, the accuracy and stability of the clock frequency of the crystal are improved, high-accuracy and high-stability radio station time service signals and standard time service signals are output through the clock, and an external time service signal input interface is provided. A precision phase difference compensation technology and a time service error control technology are adopted, so that the synchronization time of a frequency hopping radio station is shortened, synchronization hold-in and synchronization maintenance during a radio silence period are ensured, and the synchronization overhead of the radio ...

Method and system for managing an alarm signal, alarm clock comprising such a system

The invention relates to a method and a system (SYS) for managing an alarm signal in a system comprising a first internal clock. The system is intended to cooperate with a portable player (PP) comprising a second internal clock and a screen (S). The method comprises the steps of: setting the time of said first internal clock at the time of said second internal clock, selecting a given time value being displayed on said screen, memorizing said given time value in said system, setting the time of said second internal clock at the time of said first internal clock, triggering an alarm signal on said system when the time of said first internal clock reaches said given time value. According to this method, when the portable player is docked to the system, the system according to the invention does not require its own screen because the screen of the portable player is used to display the current time and the alarm time during setting it, resulting in a reduction of the costs of the system.

For satellite time system the ground of laser time difference measuring device

METHOD AND DEVICE FOR SYNCHRONIZING A LOCAL CLOCK UPON RECEPTION OF A STATION OF A COMMUNICATION NETWORK, PARTICULARLY OF A MOTOR VEHICLE

PROCESS FOR the SYNCHRONIZATION Of AT LEAST TWO CLOCKS Of a SYSTEM MICROPROCESSORS.

SYNCHRONISED CLOCK

Master slave distributed clock arrangement - uses master clock emitting time check pulse daily or weekly to slave clocks running independently

SWITCHING CONFIGURATION FOR THE RECOGNITION OF A MINUTE INITIAL SIGNAL FOR THE PRODUCTION OF A CONTROL SIGNAL FOR THE COURSE SYNCHRONISATION OF A CLOCKWORK

Digital timer synchronisation process - involves adder-subtractor system which integrates digital data pulses and delivers correction pulses

Method and apparatus for maintaining pulse per second of gps at low cost

본 발명의 일 실시 예에 따른 GPS 계측동기신호 저비용 유지장치는 GPS위성의 신호를 기준으로 계측동기신호(1PPS; pulse per second)를 생성하는 GPS 모듈, 및 상기 GPS위성의 신호가 신뢰성을 가질 때, 상기 계측동기신호의 상승 또는 하강 에지(edge)에 따라 상기 계측동기신호 사이의 시간 간격을 검출하고, 상기 GPS위성의 신호가 신뢰성을 가지지 못한 경우, 내부에 구비된 타이머의 출력 신호의 발생 주기를 상기 검출된 시간 간격으로 설정하여 상기 출력 신호를 생성하는 마이크로컨트롤러(MCU)를 포함할 수 있다.

WIRELESS COMMUNICATION ANTENNA AND MANUFACTURING METHOD THEREOF

According to an embodiment of the present invention, a wireless communication antenna comprises: a magnetic object including a plurality of laminated metal ribbons; an adhesive object bonded to side surfaces of the plurality of metal ribbons; a first substrate arranged on an upper surface of the magnetic object wherein the first substrate includes a plurality of conductive patterns; a second substrate arranged on a lower surface of the magnetic object wherein the second substrate includes a plurality of conductive patterns; and a plurality of conductive vias configured to mutually connect the plurality of conductive patterns of the first substrate and the second substrate. COPYRIGHT KIPO 2018 ...

APPARATUS AND METHOD OF CONTROLING SINCRONISAÇÃO TIME

CORRECTION PARAMETER CALCULATION DEVICE AND SYSTEM, CORRECTION PARAMETER CALCULATION METHOD, AND COMPUTER PROGRAM

The purpose of the present invention is to acquire a corrected time synchronized to a main clock device by calculating an accurate correction parameter even when propagation time for a synchronization signal is not constant. A main transmission time storage unit (42) stores main transmission times, measured by a main clock device, for each of a plurality of main synchronization signals sent by a main device. A subordinate reception time storage unit (44) stores subordinate reception times, measured by a subordinate clock device, for each of a plurality of main synchronization signals received by a subordinate device. A rate ratio calculation unit (52) calculates the rate ratio of the speed at which time on the main clock device advances with respect to the speed at which time on the subordinate clock device advances, on the basis of a mean main transmission time, which is the mean of the main transmission times, and a mean subordinate reception time, which is the mean of the subordinate ...

SYNCHRONIZATION AND CALIBRATION OF CLOCKS FOR A MEDICAL DEVICE AND CALIBRATED CLOCK

Apparatus and method support the synchronization and calibration of a plurality of clocks in a medical device system that may provide treatment to a patient with a nervous system disorder. The plurality of clocks, which may be located at different components of the medical device system, comprises a first clock and a second clock. The second clock may be synchronized to a first clock by disabling a run mode operation and setting the second clock to a selected time. When a reference time of the first clock approximately equals the selected time, the second clock enables the run mode operation. Additionally, a drift time that is indicative of a time difference between the first clock and the second clock is determined. If the drift time is greater than a predetermined amount, an indication to resynchronize the first and second clocks is provided.

METHOD FOR UNIFYING TIME IN WIDE AREA OF SPACE, SPACE TIME-KEEPING SYSTEM, AND STORAGE MEDIUM

A method for unifying a time in a wide area of space, and a space time-keeping system. The method comprises: establishing a wide-area inertial coordinate system, wherein the wide-area inertial coordinate system comprises all local area coordinate systems within a space range covered by a unified time (S101); obtaining an original local time, and establishing a local orbital parameter ephemeris by using the original local time as a time independent variable (S102); observing a pulse profile of a pulsar according to the original local time, and determining a local pulse time, wherein the local pulse time is a coordinate time when a pulse of the pulsar arrives at a local moment (S103); and converting the local pulse time by using the local orbital parameter ephemeris, so as to obtain a pulse origin time, wherein the pulse origin time is a coordinate time at which the pulse arrives at the origin of the wide-area inertial coordinate system (S104). The method for unifying a time in a wide area ...

Multiple input frequency locked loop

A dual locked loop is disclosed comparing preferably a GPS signal with an E1 signal and the E1 signal with the output of the loop. The GPS signal is low pass filtered to provide a low pass filtered GPS versus E1 signal that is used as a calibration for a closed loop having a second low pass filter for filtering the comparisons of the E1 and the output signal. By appropriately selecting the filter parameters, the output stability can track the stability of the local oscillator driving the NCO for short term stability, the medium term stability of the E1 signal and the long term stability of the GPS signal.

Digital clock selection and changeover apparatus

A clock changeover device comprising a first input port for accepting a first external clock signal, a second input port for accepting a second external clock signal, and an output port for outputting a selected one of the clock signals. The clock changeover device also comprises a circuit for generating a control signal as a function of one of the external clock signals. The control signal has a first state and a second state, the control signal being at the second state when the second external clock signal is coupled to the second input port, the control signal being at the first state when the second external clock signal is not coupled to the second input port. The clock changeover device further comprises an output circuit responsive to the control signal for coupling the first input port to the output port when the control signal is in the first state and for coupling the second input port to the output port when the control signal is in the second state.

Managing a time reference

A system for managing a time reference includes a real-time clock, an interface, and a processor. The real-time clock store an RTC time. The interface is configured to receive a GPS time and a cellular time. The processor is configured to: indicate to start a time-speed adjustment loop; determine a true time based at least in part on the GPS time and the cellular time; determine an error between the true time and the RTC time; determine an RTC speed calibration adjustment based at least in part on the error; and adjust the real-time clock speed based at least in part on the RTC speed calibration adjustment.

Time corrections for drilling data

The invention relates to a method, system and apparatus for synchronizing the time of time series data acquired from a wellbore sensor relative to a reference time series. This comprises acquiring a first time series from a sensor in a wellbore, acquiring a reference time series and determining a linear moveout time correction to apply to the first time series. The linear moveout time correction is equal to the depth of the wellbore sensor divided by the signal propagation velocity. The linear moveout correction is applied to the first time series. The first time series is cross-correlated with the reference time series to determine a cross-correlation time correction to apply to the first time series and the cross-correlation time correction is applied to the first time series to obtain a cross-correlation corrected time series. Dynamic time warping and dynamic cross-correlation may be used to adjust for clock drift.

Electronic timepiece

An electronic timepiece includes a display section capable of displaying reception state information based on the strength of a received satellite signal or the number of captured satellites during the execution of a reception process. In a case where a predetermined period has elapsed with no acquisition of time information or position information since the reception process started, the reception state information is displayed on the display section, and in a case where the time information or the position information has been successfully acquired within the predetermined period since the reception process started, the reception state information is not displayed on the display section but the reception process is terminated.

TRUSTED DISSEMINATION OF A REFERENCE TIME SCALE TO USER TERMINALS

Synchronization of remote clocks

TIME INFORMATION MANAGEMENT SYSTEM

METHOD FOR MEASURING UNIDIRECTIONAL TRANSMISSION CHARACTERISTICS SUCH AS PACKET PROPAGATION TIME, FLUCTUATIONS IN PROPAGATION TIME AND THE RESULTS WHICH CAN BE DERIVED FROM THIS, IN A TELECOMMUNICATIONS NETWORK

The invention relates to a method for measuring unidirectional transmission characteristics, such as packet propagation time (Dnetz), fluctuations in propagation time (tjitter) and results that can be derived from this, in a telecommunications network (10), such as the Internet, an intranet or similar. Multiple switching devices (12 to 22) and other devices (34, 36, 38) are interconnected by connection lines (24) in the telecommunications network. Test packets that are sent between at least two measuring computers (26, 28) are transmitted from the first measuring computer (26) to the second measuring computer (28) via a measuring path (32). The first measuring computer (26) detects the departure time (t1) of the outgoing test packet. This time is sent with the test packet. The second measuring computer (28) detects the arrival time (t2) of the test packet. The propagation time (Dnetz) of the test packet - the measuring result - is determined by calculating the difference between the time ...

HYDROGEN SYNC

DATA-PROCESSING DEVICE AND DATA-PROCESSING METHOD

TIME SYNCHRONIZATION OF A LOCAL DEVICE

A controller includes: a controller clock management unit configured to receive global time data indicating a global time associated with an external global clock, synchronize an internal controller clock of the controller with the global clock based on the global time, and set a controller time based on the synchronized controller clock; and a notification unit configured to transmit controller time data indicating the controller time to at least one local device through periodic communication.

SYSTEM AND METHOD FOR PERFORMING TIME SYNCHRONIZATION

PROBLEM TO BE SOLVED: To provide a system and a method for performing time synchronization in a local network. SOLUTION: A time source 115 determines a current time and a designated time at which a reference signal is outputted, and outputs the reference signal when the designated time comes. A network host 105 communicatively coupled to a time source identifies the designated time and makes the identified designated time communicate with one or a plurality of network devices 110a to n via a local network 120. The one or plurality of network devices initiate internal clocks 153, receive the designated times from the network host, receive reference signals outputted by time sources subsequent to receiving the designated times, and set values of the internal clocks to the designated times upon receipt of the reference signals. COPYRIGHT: (C)2011,JPO&INPIT ...

Wireless Clock System

A wireless system and method comprises a plurality of master time sources, each master time source wireless transmitting time signals containing time data, a plurality of slave clocks, each of the slave clocks for wirelessly receiving time signals which cause the slave clocks to operate in synchronization with a source of the received time signals, the source of the received time signals for at least one of the slave clocks being the master time source and the source for each other one of the slave clocks being one of the master time source or another one of the slave clocks which receives and retransmits the time signals in repeater fashion; and wherein each of the slave clocks is associated and paired with the master time source from which the time signal is first transmitted.

Distribution system for optical reference

A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.

Time synchronization method, device and system

A time synchronization method includes: after sending a synchronization message to the opposite end, sending a following message where an ending time for sending the synchronization message is recorded; receiving a delay request message sent by the opposite end, and sending a delay response message where the initial time for receiving the delay request message is recorded; receiving the synchronization message and the following message, and recording the initial time for receiving the synchronization message and the ending time recorded in the following message for sending the synchronization message; sending a delay request message, and recording an ending time for sending the delay request message; receiving a delay response message, and recording an initial time recorded in the delay response message for the opposite end to receive the delay request message; calculating the time offset value between the two ends, and completing time synchronization.

Electronic Timepiece and Electronic Device

An electronic timepiece enables a simple construction, and an electronic device has the electronic timepiece. A wristwatch 1 has a button A 6 ; a mode setting unit 32 that sets the operating mode of the wristwatch 1 based on an input operation of the button A 6 . Based on the continuous input time that the button A 6 is operated continuously, the mode setting unit 32 changes the operating mode between a timekeeping mode that receives satellite signals from one or more GPS satellites and adjusts the internal time information based on time information contained in a received satellite signal; and a positioning mode that receives satellite signals from three or more GPS satellites and adjusts the internal time information based on time information and positioning information contained in the received satellite signals.

Measuring The Phase Of Received Signals

The present disclosure relates to a method to determine the phase of a signal when transmitter and receiver circuits use separate clocks. A discrepancy between the separate clocks is determined, as is a correction factor between the separate clocks. The phase is determined using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor. A drift factor and an expected start time of a pulse sequence may be used to determine the discrepancy. A start time of a pulse within the pulse sequence is determined and used to determine the correction factor. The method works by either absolute synchronization of the separate clocks, or by making the measurements independent of clock synchronization. 1. A method to determine the phase of a signal when transmitter and receiver circuits use separate clocks , comprising:determining a discrepancy between the separate clocks;determining a correction factor between the separate clocks;determining the phase using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor.2. The method of claim 1 , wherein the determining a discrepancy comprises:determining a drift factor between the separate clocks;determining an expected start time of a pulse sequence relative to each of the separate clocks; anddetermining the discrepancy using the determined expected start times of the pulse sequence and the drift factor.3. The method of claim 2 , wherein determining the drift factor comprises:sending out a first synchronizing pulse at a first time and a second synchronizing pulse at a second time;determining the difference between the second time and the first time relative to each of the separate clocks; anddetermining the drift factor using the determined differences.4. The method of claim 2 , further comprising interpolating an updated value for the drift factor using information from one or more previous cycles.5. The method of claim 2 , wherein ...

ADAPTIVE RADIO CONTROLLED CLOCK EMPLOYING DIFFERENT MODES OF OPERATION FOR DIFFERENT APPLICATIONS AND SCENARIOS

A configurable system and method for a radio controlled clock (RCC) receiver adapted to apply different strategies for extracting timing and time information from a phase modulated signal depending on the type of application the RCC is used in and on the reception conditions. The official time signal is broadcast from a central location using a modulation scheme which includes phase modulation that alternates between different information rates, allowing for multiple alternative reception modes that are suited for different ranges of signal-to-interference-and-noise-ratio (SINR). The operation of the RCC is configured by the application that hosts it, such that the reception performance and the energy consumption best suit that application. The reception mode used by the RCC at a given time may be selected automatically, i.e. without user intervention, based on the device's profile of operation and the reception conditions. 1. A radio receiver method , said method comprising:receiving a phase modulated (PM), pulse width modulated (PWM)/amplitude shift keyed (ASK) broadcast signal encoded with phase-modulated time information frames;extracting said time information frames from the phase of said received signal; andoperating said radio receiver in accordance with a predefined profile adapted for a particular type of application host.2. The method according to claim 1 , wherein at least one input parameter from said application host is adapted to select a profile of operation from a plurality of predefined profiles of operation.3. The method according to claim 1 , wherein each said profile is adapted to suit the common needs and constraints found in different types of devices.4. The method according to claim 1 , wherein said time information frame and said step of extracting enable said radio receiver to use the received signal differently depending on the reception conditions experienced thereby.5. The method according to claim 1 , wherein said broadcast signal ...

SYSTEM AND METHOD FOR SYNCHRONIZING A LOCAL CLOCK WITH A REMOTE CLOCK

A system for synchronizing a first clock and a second clock includes a receiver associated with the first clock, configured to receive a remote pulse from the second clock. The remote pulse has a pulse repetition frequency and spectral characteristics that are known to the local clock. The system also includes a local pulse emitter configured to create a local pulse at the first clock, and optics configured to align the local pulse and the remote pulse. The system further includes an interferometer configured to create an interference pattern between the local pulse and the remote pulse. A controller is provided that is configured to calculate a time delay between the first clock and the second clock based on the interference pattern between the local pulse and the remote pulse. 1. (canceled)2. A system for synchronizing a local clock and a remote clock comprising processing circuitry arranged to:calculate a time offset between the local clock and the remote clock from an interference pattern between a spatially aligned local pulse sequence from the local clock and remote pulse sequence from the remote clock; andapply the time offset to a slave one of the local clock and the remote clock to synchronize the slave to match a master one of the local clock and the remote clock,wherein a temporal resolution of the time offset is a fraction of a remote pulse width of the local pulse sequence and a remote pulse width of the remote pulse sequence.3. The system of further comprising:a receiver associated with the local clock, configured to receive the remote pulse sequence from the remote clock, the remote pulse sequence having a pulse repetition frequency and spectral characteristics, including the remote pulse width, that are known to the local clock;a local pulse emitter configured to create the local pulse sequence, having the local pulse width, at the local clock;optical elements configured to spatially align the local pulse sequence and the remote pulse sequence; andan ...

METHOD, TIME CONSUMER SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR MAINTAINING ACCURATE TIME ON AN IDEAL CLOCK

Methods, time consumer systems, and computer program products for maintaining accurate time on an ideal clock of a timing device are disclosed. The method includes receiving time information from a local clock, a reference clock, and one or more secondary clocks. The method further includes calculating frequencies for the local clock, the reference clock, and the one or more secondary clocks. The method further includes comparing the calculated frequencies of the reference clock to the calculated frequencies of the one or more secondary clocks. The method further includes detecting a holdover and/or a compromise situation based on the comparison. The method further includes syntonizing the ideal clock to one or more of the calculated frequencies. 1. A method for maintaining accurate time on an ideal clock of a timing device , comprising:receiving time information from a local clock, a reference clock, and one or more secondary clocks;calculating frequencies for the local clock, the reference clock, and the one or more secondary clocks;comparing the calculated frequencies of the reference clock to the calculated frequencies of the one or more secondary clocks;detecting a holdover and/or a compromise situation based on the comparison; and,syntonizing the ideal clock to one or more of the calculated frequencies.2. The method of claim 1 , further comprising:determining if the calculated frequency of the reference clock has changed with respect to the calculated frequencies of the one or more secondary clocks, wherein a change detects a holdover or compromise situation.3. The method of claim 1 , further comprising:syntonizing the ideal clock to the calculated frequencies of the one or more secondary clocks if a holdover is detected.4. The method of claim 1 , further comprising:syntonizing the ideal clock to the calculated frequency of the reference clock if no holdover is detected.5. The method of claim 1 , wherein the one or more secondary clocks comprise one or more ...

TIME INFORMATION OBTAINING DEVICE AND RADIO-CONTROLLED TIMEPIECE

A time information obtaining device and a radio-controlled timepiece are shown. According to one implementation, the time information obtaining device includes a receiving section, a code identifying section, a decoding section, and a consistency confirming section. The consistency confirming section confirms consistency of time information. The consistency confirming section generates the selected code string using the following: (i) a matching selected code string portion in which, for a code string portion including a code which may change according to the time information, a type of code is selected based on a degree of match between an identified code string and a model code string; and (ii) a majority selected code string portion in which, for a portion other than the above, a type of code is selected by majority determination among the codes identified to be a same position. 1. A time information obtaining device comprising:a receiving section which receives a radio wave including time information and which demodulates a signal from the received radio wave;a code identifying section which identifies a code string showing the time information from the signal demodulated by the receiving section;a decoding section which decodes the identified code string to obtain time information; anda consistency confirming section which confirms consistency of time information shown in a plurality of code strings,wherein at least one of the plurality of code strings with which consistency is confirmed by the consistency confirming section is a selected code string generated by code strings consisting of a predetermined number which is at least 3 identified by the code identifying section; and (i) a matching selected code string portion in which, among the predetermined number of code strings, for a code string portion set in advance including a code which may change among code strings according to the time information of the code string, a type of code of a code string ...

ROBUST AND RESILIENT TIMING ARCHITECTURE FOR CRITICAL INFRASTRUCTURE

A device for transmitting synchronized timing including a receiver, a transmitter, one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs including instructions for receiving through the receiver a timing signal comprising first time information that is synchronized to a time standard, determining second time information based at least partially on the first time information, composing a message formatted in accordance with a global navigation satellite system (GNSS) standard, wherein the message comprises the second time information, and transmitting the message through the transmitter on a radio signal having a frequency in the frequency modulation (FM) radio frequency band. 1. (canceled)2. A device for transmitting synchronized timing comprising:a receiver, wherein the receiver is configured to receive a timing signal from a ground-based reference clock;a transmitter;a time interval counter tester, wherein the time interval counter tester is configured to compare timing information from a plurality of sources to determine the performance of the receiver and the transmitter;a two-way time and frequency transfer (TWFTFT) unit, wherein the TWFTFT unit is configured to exchange timing information between the receiver and the ground-based reference clock;one or more processors;memory; andone or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs including instructions for:receiving through the receiver the timing signal comprising first time information that is synchronized to a time standard;determining second time information at least partially on the first time information;transmitting the second time information from the receiver to the transmitter;composing a message formatted in accordance with a global navigation satellite system (GNSS ...

TIME DISPLAY DEVICE

A time display device having a function of displaying time information which may display a user-setting based time matching a user preference or a correct time in proper timing is provided. The device comprises a processing device configured to measure and display a time based on a first time setting information which is input or previously input thereto, in response to a predetermined device being connected thereto acquire a second time setting information from the predetermined device, and measure and display a time based on the second time setting information instead of the time based on the first time setting information. The processing device is further configured to, after starting to display the time based on the second time setting information, continue to display the time based on the second time setting information until the time display device is turned off, even though the predetermined device is disconnected. 1. A time display device having a function of displaying time information , comprising measure and display a time based on a first time setting information which is input or previously input thereto;', 'in response to a predetermined device being connected thereto, acquire a second time setting information from the predetermined device;', 'measure and display a time based on a second time setting information instead of the time based on the first time setting information,', 'after starting to display the time based on the second time setting information, continue to display the time based on the second time setting information until the time display device is turned off, even though the predetermined device is disconnected., 'a processing device configure to2. The time display device according to claim 1 , wherein continue a measurement of the time based on the first time setting information even after the time display device is turned off,', 'display the time based on the first time setting information at a time when the time display device is ...

Electronic Timepiece and Electronic Device

An electronic timepiece enables a simple construction, and an electronic device has the electronic timepiece. A wristwatch 1 has a button A 6 ; a mode setting unit 32 that sets the operating mode of the wristwatch 1 based on an input operation of the button A 6 . Based on the continuous input time that the button A 6 is operated continuously, the mode setting unit 32 changes the operating mode between a timekeeping mode that receives satellite signals from one or more GPS satellites and adjusts the internal time information based on time information contained in the received satellite signal(s); and a positioning mode that receives satellite signals from three or more GPS satellites and adjusts the internal time information based on time information and positioning information contained in the received satellite signals.

METHOD FOR DETECTING SYNCHRONIZATION DEVIATION BETWEEN COMMUNICATION STATIONS

The time of transmission and reception between stations A and B is exchanged, and any deviation in time is calculated in a corresponding manner in the stations. Using the transmission time TXA from station A to B, the transmission time TYB from station B to A, the time TXB of a clock at station B in a transmission from station A to station B, and the clock time TYA at station A in a transmission from station B to A, the following are measured in sequence: 1) station A records the time TXA at which TXA and TYA were transmitted, 2) station B measures the time TXB at which TXA and TYA were received, 3) station B records the time TYB at which TXB and TYB were transmitted, and 4) station A measures the time TYA at which TXB and TYB were received, the transfer time between stations A and B being derived at each station on the basis of the average of the increase ΔTXB-A from TXA to TXB and the increase ΔTYA-B from TYB to TYA, or the deviation in time for a transfer between stations A and B being determined by subtracting the increase ΔTXB-A from the transfer time. The transmission time TXA from station A to B may also be measured using a reflection signal from a transmission terminal. 1. A method for detecting a synchronization deviation between communication stations , the method being a method for detecting , in first and second communication stations selected from among two or more communication stations that are connected to each other via a communication method to be capable of communicating with each other , a deviation in time between time information that is transmitted from a transmitter (X) of the first communication station (A) and received by the second communication station (B) and time information that is transmitted from a transmitter (Y) of the second communication station (B) and received by the first communication station (A) , the communication stations each clocking time in a corresponding manner andtransmitting predetermined empty information in a case ...

METHOD FOR DISPLAYING TIME INFORMATION AND ELECTRONIC DEVICE SUPPORTING THE SAME

An electronic device is provided. The electronic device may include a display, a processor operatively connected with the display and configured to generate external reference time information, a display driver integrated circuit configured to periodically or randomly receive the external reference time information from the processor, wherein the display driver integrated circuit is configured to generate internal time information based on an internal clock, to output a clock image corresponding to the internal time information on the display, and if a time error between the external reference time information and the internal time information occurs during the outputting of the clock image, to output the internal time information, the time error of which is corrected, on the display. 1. An electronic device comprising:a display;a processor operatively connected with the display and configured to generate external reference time information;a display driver integrated circuit configured to receive the external reference time information from the processor,wherein the display driver integrated circuit is configured to:generate internal time information based on an internal clock;output a clock image corresponding to the internal time information on the display; andif a time error between the external reference time information and the internal time information occurs during the outputting of the clock image, output the internal time information, the time error of which is corrected, on the display.2. The electronic device of claim 1 , wherein the display driver integrated circuit is configured to:compensate for the time error by correcting a number of frame sync signals associated with an output of display data.3. The electronic device of claim 2 , wherein the display driver integrated circuit is configured to:compensate for a fast time error by increasing the number of frame sync signals processed in units of a specified time if the internal time information is ...

Time comparison device and time quality monitoring method

[Problem] An object is to obtain a time quality of another GM with high accuracy on the basis of a GM a time quality of which is known already.[Solution] A first TC 20 includes a time comparison unit 23 that calculates time difference information by comparing first time information of a first PTP processing unit 12 and second time information of a second PTP processing unit 22 with each other. In addition, a quality calculation device 5 measures time difference information until time difference information obtained by a time comparison unit 23 of the first TC 20 and time difference information obtained by a time comparison unit 43 of a second TC 40 match each other, and obtains a GM time quality of a second GM 30 on the basis of a transmission time error of the time transmission network 2 at a timing when both of pieces of the time difference information match each other.

ELECTRONIC DEVICE, TIME SETTING METHOD, TIME SETTING SYSTEM AND PROGRAM

An electronic device includes a communication unit that performs communication with an external apparatus; a timekeeping unit that performs timekeeping of time; and a control unit, after completion of a connection with the external apparatus using the communication unit, updates time of the timekeeping unit using time information when being in a state where time can be set by obtaining the time information from the external apparatus. 1. An electronic device comprising:a communication unit that performs communication with an external apparatus;a timekeeping unit that performs timekeeping of time; anda control unit, after completion of a connection with the external apparatus using the communication unit, updates time of the timekeeping unit using time information when being in a state where time can be set by obtaining the time information from the external apparatus.2. The electronic device according to claim 1 ,wherein the control unit updates the time of the timekeeping unit after the electronic device runs and a first connection with the external apparatus using the communication unit is completed.3. The electronic device according to claim 1 ,wherein the control unit transmits device information indicating that the electronic device is a device where the time can be set to the external apparatus from the communication unit after the connection with the external apparatus is completed, and obtains the time information supplied from the external apparatus according to device information transmission.4. The electronic device according to claim 1 ,wherein the control unit changes the time of the timekeeping unit to a time specified in advance, when time indicated by the time information is not within a predetermined period.5. The electronic device according to claim 1 ,wherein the communication unit performs wireless communication with the external apparatus.6. The electronic device according to claim 5 ,wherein the control unit causes the electronic device to run ...

Wearable Electronic Device With Hand Synchronization

A wearable electronic device having an analog display and a digital display. The device may include a receiver for receiving, from a remote source, current time information data representative of a current time; a controller, operatively coupled to the receiver, wherein the controller processes the current time information data received from the remote source and provides for the current time information data to be displayed by the at least one digital indicator on the digital display as the current time; and a an analog time indicator rotating arrangement for causing the rotation of the at least one analog time indicator until the at least one analog time indicator is aligned with the at least one digital indicator; whereby the alignment of the at least one analog time indicator with the at least one digital indicator indicates that the at least one analog time indicator is synchronized with the correct time information. 1. A wearable electronic device comprising (i) an analog display for the display of time information by at least one analog time indicator and (ii) a digital display having at least one electronic analog indicator for displaying at least current time on the digital display ,a receiver for receiving, from a remote source, current time information data representative of a current time;a controller, operatively coupled to the receiver, wherein the controller processes the current time information data received from the remote source and provides for the current time information data to be displayed by the at least one electronic analog indicator on the digital display as the current time;an analog time indicator rotating arrangement for causing the rotation of the at least one analog time indicator until the at least one analog time indicator appears superimposed with the at least one electronic analog indicator;whereby the superimposed position of the at least one analog time indicator with the at least one electronic analog indicator indicates that ...

SATELLITE ANTENNA INTEGRATED TIME-SYNCHRONIZATION DEVICE

The present invention relates to a satellite antenna integrated time-synchronization device for generating a time-synchronization signal from a satellite signal received from a satellite, which includes a case, a PPS synchronization module which is disposed in the case and is configured to generate at least a PPS signal from the satellite signal, and a signal processing means which is disposed in the case and is configured to generate an IRIG signal and communication data using the PPS signal input from the PPS synchronization module. 1. A satellite antenna integrated time-synchronization device configured to generate a time-synchronization signal from a satellite signal received from a satellite , the device comprising:a case;a 1PPS synchronization module which is disposed in the case and is configured to generate at least a 1PPS signal from the satellite signal; anda signal processing means which is disposed in the case and is configured to generate an IRIG signal and communication data using the 1PPS signal input from the 1PPS synchronization module.2. The satellite antenna integrated time-synchronization device according to claim 1 , wherein the case comprises of an upper case and a lower case claim 1 , andthe lower case includes a permanent magnet installed therein to attach the case to a power equipment control device.3. The satellite antenna integrated time-synchronization device according to claim 1 , wherein the case is mounted to the power equipment control device by screwing.4. A satellite antenna integrated time-synchronization device configured to generate a time-synchronization signal from a satellite signal received from a satellite and output it to a power equipment control device claim 1 , the device comprising:a 1PPS synchronization module configured to generate a 1PPS signal, satellite connection state information, and a UART communication signal from the satellite signal; anda signal processing means configured to generate a signal necessary for ...

METHOD AND ELECTRONIC DEVICE FOR DISPLAYING TIME

A method and an electronic device are provided for displaying time information corresponding a location where an external electronic device is located. The electronic device obtains the time information of the external electronic device. The electronic device displays the time information and contact information corresponding to the external electronic device in response to a request. 1. An electronic device , comprising:an information processing module configured to control a display to display contact information and time information corresponding to an external electronic device, in response to a request; andthe display configured to display the contact information and the time information.2. The electronic device of claim 1 , wherein the information processing module is further configured to:obtain the time information from the external electronic device or a server device that manages the time information; orobtain the time information from location information collected from the external electronic device or a server device that manages the location information.3. The electronic device of claim 1 , wherein the information processing module is further configured to:extract location information of the external electronic device from contents received from a server device that manages contents transmitted from the external electronic device; andobtain the time information based on the location information.4. The electronic device of claim 1 , wherein the time information includes information of at least one of a time zone claim 1 , a current time claim 1 , a date claim 1 , and a day of the week.5. The electronic device of claim 1 , wherein a screen on the display comprises at least one of a contact list claim 1 , a chat friend list claim 1 , user profile information of the external electronic device claim 1 , a function associated with a chat room claim 1 , and a function associated with a message.6. The electronic device of claim 1 , wherein the information ...

INFORMATION PROCESSING APPARATUS

An information processing apparatus includes: a communication device communicating with an external device and a clock server; a first clock measuring a local time; a second clock measuring a time based on time information from the clock server; a storage device storing setting information; and a controller performing: when receiving the time information from the external device, judging whether a specified condition is met; when the specified condition is met, setting a time indicated by the time information to the first clock as the local time; when the specified condition is met, controlling the first clock to measure the local time, without the controller setting the time to the first clock as the local time; setting the time indicated by the time information to the second clock and setting a time determined based on the time of the second clock and the setting information to the first clock. 1. An information processing apparatus comprising:a communication device capable of communicating with an external device and a clock server configured to provide time information;a first clock configured to measure a local time;a second clock configured to measure a time based on the time information provided from the clock server;a storage device configured to store setting information for determining a local time based on the time measured by the second clock; and judging whether a specified conditions is met, when the time information from the external device is received,', 'setting a time indicated by the time information received from the external device to the the first clock as the local time, when it is judged that the specified conditions is met,', 'controlling the first clock to measure the local time, without the controller setting the time indicated by the time information received from the external device to the first clock as the local time, when it is judged that the specified conditions is not met,', 'when the time information from the clock server is ...

METHODS AND APPARATUS FOR COMMUNICATIVELY COUPLING INTERNAL COMPONENTS WITHIN APPLIANCES, AND APPLIANCES WITH EXTERNAL COMPONENTS AND ACCESSORIES

Example methods and apparatus for communicatively coupling internal components and accessories appliances, and appliances with external components and accessories are disclosed herein. A disclosed example method of operating a domestic appliance having at least one of an internal communications network and/or an external communications network among at least two components includes identifying the components, communicating the capabilities of each identified component, communicating the status of each identified component, providing a command interface for operating the components, facilitating communication between the components, and operating the appliance using the command interface and the facilitated communication. 1. A filter system for an appliance configured to perform a cycle of operation on an article , comprising:a filter cartridge having a housing, an identifying element defining characteristics associated with the filter cartridge, and a controller defining at least one functionality associated with the filter cartridge;a reading element disposed on the appliance and configured to interact with the identifying element; anda controller of the appliance configured to determine whether the filter is compatible with the filter system of the appliance based on the characteristics associated with the filter cartridge, and upon a determination that the filter cartridge is compatible with the filter system, communicating, between the appliance and the controller of the filter cartridge such that the appliance receives the at least one functionality associated with the filter cartridge, and modifying an appliance operation based on the at least one functionality.2. The filter system of wherein the filter is a liquid filter.3. The filter system of wherein the identifying element is at least one of a barcode claim 1 , a magnetic strip claim 1 , a microprocessor claim 1 , a memory chip claim 1 , a license key claim 1 , a specialized structure claim 1 , a smart ...

SYNCHRONIZATION OF ALARMS BETWEEN DEVICES

A method for synchronizing a first device with a second device may include receiving an alarm activation time from the first device. An alarm may be set on the second device to be the same as the alarm activation time. An indication that the alarm is set on the second device may be sent to the first device. Immediately prior to the alarm activation time, it may be determined that the first device is proximate to the second device, and upon determining that the first device is proximate to the second device, the alarm may be activated on the second device at the alarm activation time. The devices may be considered proximate based on a connection protocol, such as when the first device is able to communicate with the second device over a wired or wireless communication protocol. 1. A method for synchronizing a first device with a second device , comprising:receiving an alarm activation time from the first device,setting an alarm on the second device to be the same as the alarm activation time,sending to the first device, an indication that the alarm is set on the second device,determining immediately prior to the alarm activation time that the first device is proximate to the second device,upon determining that the first device is proximate to the second device, activating the alarm on the second device at the alarm activation time.2. The method of claim 1 , wherein the determination that the first device is proximate to the second device is based on a connection between the first device and the second device.3. The method of claim 1 , wherein the connection is a connection-type selected from the group consisting of a wire claim 1 , near field communications claim 1 , Bluetooth claim 1 , location service claim 1 , or other wireless connection protocol.4. The method of claim 1 , wherein each of the first device and second device is independently selected from the group consisting of a smartphone claim 1 , PDA claim 1 , handheld device claim 1 , handheld computer claim ...

TIMEPIECE DEVICE AND METHOD OF OPERATION THEREOF

A timepiece device includes a control unit for time keeping, which is synchronizable by a clock generator. The timepiece device has at least two crystal oscillators built respectively by at least one crystal unit, whereby a first crystal oscillator with a first crystal unit and with a predetermined nominal oscillation frequency is suitable for use as the clock generator of the control unit during a vehicle standby mode, and whereby the oscillation frequency of the first crystal oscillator is at least temporarily measured and adjustable by a second crystal oscillator with a second crystal unit whose nominal oscillation frequency is higher than that of the first crystal oscillator. In a method of operation of the timepiece device, the oscillation frequency of the second crystal oscillator is compensated against the temperature by the software inside the control unit. 1. A timepiece device , comprising:a clock generator; anda control unit for timekeeping, which is synchronizable by the clock generator,wherein the clock generator includes at least two crystal oscillators built respectively by at least one crystal unit, wherein a first crystal oscillator with a first crystal unit and with a predetermined nominal oscillation frequency is suitable for use as the clock generator of the control unit during a vehicle standby mode, and the oscillation frequency of the first crystal oscillator is at least temporarily measured and adjustable by a second crystal oscillator with a second crystal unit whose nominal oscillation frequency is higher than that of the first crystal oscillator.2. The timepiece device according to claim 1 , wherein the nominal oscillation frequency of the first crystal oscillator is below 0.1 MHz.3. The timepiece device according to claim 1 , wherein the first crystal unit is a tuning fork crystal unit.4. The timepiece device according to claim 1 , wherein the nominal oscillation frequency of the second crystal oscillator is higher than 0.5 MHz.5. The ...

Method and Apparatus for Synchronizing Clocks Underwater Using Light and Sound

Methods and systems for synchronizing clocks used in underwater devices is described. All clocks have some drift due to frequency accuracy and this disclosure provides a method for periodically synchronizing clocks to an accurate master clock to remove long term drift. A synchronization device can use an accurate clock and hardware to transmit both a sound wave and light pulse at the same point in time. Remote slave clocks can detect the light first, and later the sound, allowing them to calculate the distance the pulse had to travel. The clocks can then synchronize their time to the master clock canceling out any drift. The synchronization device can be packaged in a waterproof housing and can be moved around on a periodic basis between the clock on an underwater robot or any other means.

Synchronization of Clocks and Sensors via Exponential-Based TDR and Communication of Exponential-Null Pulse Sequences

A method for establishing synchronization between a master clock and a slave clock. A transmitter near the master clock transmits a pulse sequence onto an electrical cable that extends between the transmitter and a receiver near the slave clock. Each pulse of the pulse sequence is either a null pulse (i.e., a zero pulse) or a pulse of exponential kind, depending a corresponding bit in a bit sequence. Each pulse of exponential kind has a leading edge pf exponential shape corresponding to the exponential coefficient α. The bit sequence represents the sum of (a) a current timestamp of the master clock and (b) an adjustment value that represents the one-way time of-flight of the exponentially shaped leading edge through the cable. The receiver recovers the bit sequence from the pulse sequence, and loads the bit sequence into the slave clock, to establish synchronization.

METHOD AND SYSTEM FOR PRESENTING TIME ON AN APPLIANCE

A method for presenting time on an appliance is provides. The method includes connecting a plurality of appliances to each other with a network, establishing a time of day, presenting the time of day on a display of a first one of the plurality of appliances, and deactivating a display of a second one of the plurality of appliances such that the time of day is not presented on the display of the second one of the plurality of appliances. A related system for presenting time on an appliance is also provided. 1. A method for presenting time on an appliance , comprising:connecting a plurality of appliances to each other with a network;establishing a time of day;presenting the time of day on a display of a first one of the plurality of appliances; anddeactivating a display of a second one of the plurality of appliances such that the time of day is not presented on the display of the second one of the plurality of appliances.2. The method of claim 1 , wherein said step of connecting comprises connecting the plurality of appliances to each other with a wireless network.3. The method of claim 1 , wherein said step of establishing comprises manually entering the time of day with a user input of one of the plurality of appliances.4. The method of claim 1 , wherein said step of establishing comprises receiving the time of day from a standard time service via the network.5. The method of claim 1 , further comprising setting a clock of each appliance of the plurality of appliances with the time of day.6. The method of claim 1 , wherein said step of presenting the time of day comprises presenting the time of day on only the display of the first one of the plurality of appliances.7. The method of claim 6 , wherein said step of deactivating comprises deactivating all displays of the plurality of appliances except the display of the first one of the plurality of appliances.8. The method of claim 1 , wherein the plurality of appliances comprises more than three appliances and less ...

Techniques for protection and accuracy of system time

Techniques are disclosed for the protection and accuracy of system time used in systems, such as automotive systems, from attacks. In some embodiments, a cumulative trustworthiness score is determined for available time sources, other than a real time clock, by adding together trustworthiness scores associated with the available time sources after a system time is initialized to time of the real time clock during booting. The cumulative trustworthiness score is then used to determine an appropriate technique for updating the system time based on time from one of the available time sources, depending on whether the cumulative trustworthiness score is greater than a maximum threshold, between a minimum threshold and the maximum threshold, or less than the minimum threshold.

METHOD, TIME CONSUMER SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR MAINTAINING ACCURATE TIME ON AN IDEAL CLOCK

Methods, time consumer systems, and computer program products for maintaining accurate time on an ideal clock of a timing device are disclosed. The method includes receiving time information from a local clock, a reference clock, and one or more secondary clocks. The method further includes calculating frequencies for the local clock, the reference clock, and the one or more secondary clocks. The method further includes comparing the calculated frequencies of the reference clock to the calculated frequencies of the one or more secondary clocks. The method further includes detecting a holdover and/or a compromise situation based on the comparison. The method further includes syntonizing the ideal clock to one or more of the calculated frequencies. 1. A method for maintaining accurate time on an ideal clock of a timing device , comprising:receiving time information from a local clock, a reference clock, and one or more secondary clocks;calculating frequencies for the local clock, the reference clock, and the one or more secondary clocks;comparing the calculated frequencies of the reference clock to the calculated frequencies of the one or more secondary clocks;detecting a holdover and/or a compromise situation based on the comparison; and,syntonizing the ideal clock to one or more of the calculated frequencies.2. The method of claim 1 , further comprising:determining if the calculated frequency of the reference clock has changed with respect to the calculated frequencies of the one or more secondary clocks, wherein a change detects a holdover or compromise situation.3. The method of claim 1 , further comprising:syntonizing the ideal clock to the calculated frequencies of the one or more secondary clocks if a holdover is detected.4. The method of claim 1 , further comprising:syntonizing the ideal clock to the calculated frequency of the reference clock if no holdover is detected.5. The method of claim 1 , wherein the one or more secondary clocks comprise one or more ...

METHOD AND APPARATUS FOR SYNCHRONIZING CLOCKS UNDERWATER USING LIGHT AND SOUND

Methods and systems for synchronizing clocks used in underwater devices is described. All clocks have some drift due to frequency accuracy and this disclosure provides a method for periodically synchronizing clocks to an accurate master clock to remove long term drift. A synchronization device can use an accurate clock and hardware to transmit both a sound wave and light pulse at the same point in time. Remote slave clocks can detect the light first, and later the sound, allowing them to calculate the distance the pulse had to travel. The clocks can then synchronize their time to the master clock canceling out any drift. The synchronization device can be packaged in a waterproof housing and can be moved around on a periodic basis between the clock on an underwater robot or any other means. 1. A method for synchronizing underwater slave clock devices from a master clock device wirelessly , comprising:transmitting from the master clock device a light pulse and a sound pulse;receiving at a slave clock device the light pulse and the sound pulse;calculating at the slave clock device, based upon the difference in arrival times of the light pulse and the sound pulse, a distance between the master clock device and the slave clock device;calculating at the slave clock device, based upon the distance between the master clock device and the slave clock device, the time at which the light pulse was transmitted from the master clock device;applying at the slave clock device a time offset to a clock on the slave clock device based upon a difference between the time that the light pulse was transmitted according to a clock on the master clock device and the calculated light pulse transmission time calculated at the slave clock device.2. The method of claim 1 , wherein light pulses can be sent and received by both the master and slave clock devices for two way transmission of digital data between the master and slave clock devices.3. The method of claim 1 , wherein sound pulses can ...

WATCHES

According to various embodiments, a watch may be provided. The watch may include: a timing circuit configured to provide information about a current time; a smart watch circuit configured to provide smart watch functionality; a first battery configured to provide energy to the timing circuit; a second battery configured to provide energy to the smart watch circuit; and a communication circuit configured to provide communication between the timing circuit and the smart watch circuit; wherein the communication circuit includes a safety circuit configured to prevent leakage of current from the first battery to the second battery. 1. A watch comprising:a timing circuit configured to provide information about a current time;a smart watch circuit configured to provide smart watch functionality;a first battery configured to provide energy to the timing circuit;a second battery configured to provide energy to the smart watch circuit; anda communication circuit configured to provide communication between the timing circuit and the smart watch circuit; andwherein the communication circuit comprises a safety circuit configured to prevent leakage of current from the first battery to the second battery.2. The watch of claim 1 ,wherein the first battery is configured to provide energy only to the timing circuit.3. The watch of claim 1 ,wherein the first battery is configured to prevent providing energy to the smart watch circuit.4. The watch of claim 1 ,wherein the second battery is configured to provide energy only to the smart watch circuit.5. The watch of claim 1 ,wherein the second battery is configured to provide energy to the smart watch circuit and to the timing circuit if it is determined that the second battery comprises more than a pre-determined energy.6. The watch of claim 1 ,wherein the communication circuit comprises at least one of an input/output buffer or a series of input/output buffers.7. The watch of claim 6 ,wherein the input/output buffers comprises the ...

RADIO TIMEPIECE AND RECEIPT CONTROL METHOD

A receipt time determination unit of a control unit in a control circuit modifies a receipt time in a case where a gain determined by an AGC circuit in a receiver circuit unit is not less than a reference value, where it is discerned that there is an error in a time code by an error discernment unit of a TCO decoder unit in the control circuit unit, and where it is discerned that data of the time code is impacted by interference waves by an interference wave discernment unit of the TCO decoder unit. 1. A radio timepiece configured to receive standard radio waves having a time code and calibrate a time based on the standard radio waves , the radio timepiece comprising:an amplifier circuit configured to amplify a received signal of the standard radio waves;an automatic gain control circuit configured to adjust a gain of the amplifier circuit in accordance with strength of the received signal;a demodulating circuit configured to demodulate the received signal;a decoder unit configured to decode a signal demodulated by the demodulating circuit to acquire the time code; anda receipt time determination unit configured to modify a receipt time in a case where it is discerned that the received signal is impacted by noise based on an output of the automatic gain control circuit and the time code.2. The radio timepiece as set forth in claim 1 , further comprisingan interference wave discernment unit configured to discern whether or not the time code acquired by the decoder unit has only zeroes and the time code having only zeroes is acquired over a predetermined duration or longer.3. The radio timepiece as set forth in claim 1 , further comprisingan error discernment unit configured to discern whether or not the time code acquired by the decoder unit has an error, andan interference wave discernment unit configured to discern whether or not the time code acquired by the decoder unit has only zeroes and the time code having only zeroes is acquired over a predetermined duration ...

ELECTRONIC TIMEPIECE AND ELECTRONIC DEVICE

An electronic timepiece enables a simple construction, and an electronic device has the electronic timepiece. A wristwatch has a button A ; a mode setting unit that sets the operating mode of the wristwatch based on an input operation of the button A . Based on the continuous input time that the button A is operated continuously, the mode setting unit changes the operating mode between a timekeeping mode that receives satellite signals from one or more GPS satellites and adjusts the internal time information based on time information contained in a received satellite signal; and a positioning mode that receives satellite signals from three or more GPS satellites and adjusts the internal time information based on time information and positioning information contained in the received satellite signals. 1. An electronic timepiece comprising:an external operating member;a mode setting unit that sets an operating mode of the timepiece based on an input operation of the external operating member;a reception unit that receives a satellite signal transmitted from a positioning information satellite;a time adjustment unit that adjusts internal time information based on the satellite signal received by the reception unit;a set mode display unit that displays the operating mode corresponding to the operating time during which the operating member is operated continuously; a first mode that receives a satellite signal from one or more positioning information satellites and adjusts the internal time information based on time information contained in the received satellite signal, when a continuous input time for which the external operating member is operated continuously is greater than a first time and less than or equal to a second time, which is greater than the first time, and', 'a second mode that receives satellite signals from three or more positioning information satellites and adjusts the internal time information based on time information and positioning information ...

COMMUNICATION SYSTEM, ELECTRONIC TIMEPIECE, AND COMMUNICATION DEVICE

Either the electronic timepiece or the communication device of a communication system has a first communicator, and the other has a second communicator. The first communicator has a first transmitter including a transmission coil and a drive circuit configured to drive the transmission coil, and is configured to transmit signals by communicating through electromagnetic coupling; and an first receiver including a photodetector and a detection circuit that detects the output value of the photodetector, and configured to receive signals by optical communication. The second communicator has an second transmitter including a light-emitting device and a drive circuit that drives the light-emitting device, and configured to transmit signals by optical communication; and a second receiver including a reception coil and a detection circuit that detects the output value of the reception coil, and configured to receive signals by communicating through electromagnetic coupling. 1. A communication system comprising an electronic timepiece and a communication device , wherein:either the electronic timepiece or the communication device has a first communicator;the other of the electronic timepiece and communication device has a second communicator capable of communicating with the first communicator; a first transmitter including a transmission coil and a drive circuit configured to drive the transmission coil, and is configured to transmit signals by communicating through electromagnetic coupling using the transmission coil, and', 'an first receiver including a photodetector and a detection circuit that detects the output value of the photodetector, and configured to receive signals by optical communication using the photodetector; and, 'the first communicator has'} an second transmitter including a light-emitting device and a drive circuit that drives the light-emitting device, and configured to transmit signals by optical communication using the light-emitting device, and', 'a ...

Method for displaying time information and electronic device supporting the same

An electronic device is provided. The electronic device may include a display, a processor operatively connected with the display and configured to generate external reference time information, a display driver integrated circuit configured to periodically or randomly receive the external reference time information from the processor, wherein the display driver integrated circuit is configured to generate internal time information based on an internal clock, to output a clock image corresponding to the internal time information on the display, and if a time error between the external reference time information and the internal time information occurs during the outputting of the clock image, to output the internal time information, the time error of which is corrected, on the display.

Trusted Dissemination of a Reference Time Scale to User Terminals

A Reference Time Scale Dissemination System (RTS-DS) is provided that includes a RTS Dissemination Data Provider (RTS-DDP) and a User Terminal. The RTS Dissemination Data Provider is equipped with a radio receiver designed to receive radio signals and to compute a RTS-DDP Computed Time Scale based on received radio signals. The User Terminal (UT) is equipped with a Radio Receiver designed to receive radio signals and to compute a UT Computed Time Scale based on received radio signals, and with a Clock Device designed to be locked to the UT Computed Time Scale and to provide a UT Local Time Scale resultingly locked to the UT Computed Time Scale. The RTS-DPP is designed to receive a Reference Time Scale, and compute, at a RTS-DDP Computed Time, Time Quantities indicative of a difference between the RTS-DDP Computed Time Scale and the received Reference Time Scale, including a Time Scatter indicative of a difference between the RTS-DDP Computed Time and a corresponding Reference Time, and a Time Offset indicative of a mean value, computed over a timespan, of a number of differences between RTS-DDP Computed Times and corresponding Reference Times. 1. A Reference Time Scale (RTS) Dissemination System (RTS-DS) comprising:a RTS Dissemination Data Provider (RTS-DDP), anda User Terminal (UT);wherein the RTS Dissemination Data Provider (RTS-DDP) is equipped with a Radio Receiver designed to receive radio signals and to compute a RTS-DDP Computed Time Scale based on received radio signals;wherein the User Terminal (UT) is equipped with a Radio Receiver designed to receive radio signals and to compute a UT Computed Time Scale based on received radio signals, and with a Clock Device designed to be locked to the UT Computed Time Scale and to provide a UT Local Time Scale resultingly locked to the UT Computed Time Scale;wherein the RTS Dissemination Data Provider (RTS-DDP) is designed to:receive a Reference Time Scale (RTS), a Time Scatter indicative of a difference between the ...

Optical time distributor and process for optical two-way time-frequency transfer

An optical time distributor includes: a master clock including: a master comb; a transfer comb; and a free-space optical terminal; and a remote clock in optical communication with the master clock via a free space link and including: a remote comb that produces: a remote clock coherent optical pulse train output; a remote coherent optical pulse train; a free-space optical terminal in optical communication: with the remote comb; and with the free-space optical terminal of the master clock via the free space link, and that: receives the remote coherent optical pulse train from the remote comb; receives the master optical signal from the free-space optical terminal of the master clock; produces the remote optical signal in response to receipt of the remote coherent optical pulse train; and communicates the remote optical signal to the free-space optical terminal of the master clock.

TIME CORRECTIONS FOR DRILLING DATA

The invention relates to a method, system and apparatus for synchronizing the time of time series data acquired from a wellbore sensor relative to a reference time series. This comprises acquiring a first time series from a sensor in a wellbore, acquiring a reference time series and determining a linear moveout time correction to apply to the first time series. The linear moveout time correction is equal to the depth of the wellbore sensor divided by the signal propagation velocity. The linear moveout correction is applied to the first time series. The first time series is cross-correlated with the reference time series to determine a cross-correlation time correction to apply to the first time series and the cross-correlation time correction is applied to the first time series to obtain a cross-correlation corrected time series. Dynamic time warping and dynamic cross-correlation may be used to adjust for clock drift. 1. A process for adjusting the time reference of time series data acquired from a wellbore sensor relative to a reference time series where the process comprises:a. acquiring a first time series from a sensor in a wellbore;b. acquiring a reference time series;c. determining a linear moveout time correction to apply to the first time series, the linear moveout time correction equal to the depth of the wellbore sensor divided by the signal propagation velocity;d. applying the linear moveout correction to the first time series;e. crosscorrelating the first time series with the reference time series to determine a cross-correlation time correction to apply to the first time series; andf. applying the cross-correlation time correction to the first time series to obtain a cross-correlation corrected time series.2. The process of further comprising determining a dynamic cross-correlation correction with the reference time series to apply to the first time series.3. The process of wherein the dynamic cross-correlation time correction is applied to the first ...

PULSAR BASED TIMING SYNCHRONIZATION METHOD AND SYSTEM

A pulsar based timing synchronization method and system are disclosed. In one example, a method includes receiving, by a pulsar signal receiver device, a pulse signal emitted from one or more celestial objects and processing, by the pulsar signal receiver device, the pulse signal to discipline a local clock to determine an accurate time output. The method also includes generating, by the pulsar signal receiver device, a timing synchronization signal based on the determined accurate time output. The method further includes providing, by the pulsar signal receiver device, the timing synchronization signal to at least one of a local power system device and a timing distribution network server.

Electronic timepiece powered by a generator driven by a mechanical power source

The timepiece (1) includes a mainspring (2) driving the rotor (3a) of an electromechanical converter (3) and time display hands (6). A circuit (7) for enslaving the real angular position of the rotor (3a) to its desired angular position is supplied with electrical energy by the converter (3). In order to increase the autonomy of the timepiece (1), the enslaving circuit (7) includes means (28) which store a portion of the electrical energy generated by the converter (3) and means (21, 23 to 27) which use this stored electrical energy to apply driving pulses (IM) to the converter (3) when the rotor (3a) has a greater retardation than a determined retardation, with respect to its desired angular position.

Method and apparatus for system time broadcating and status/alarm management of gpsr

가. 청구범위에 기재된 발명이 속한 기술분야: end. The technical field to which the invention described in the claims belongs: 지상위치측정시스템 수신기의 상태/알람관리와 시스템시간 방송 방법 및 그 장치 Status / alarm management and system time broadcasting method of ground position measuring system receiver and its device 나. 발명이 해결하려고 하는 기술적 과제: I. The technical problem the invention is trying to solve: 지상위치측정시스템 수신기의 상태/알람관리와 시스템시간 방송을 상세하고 정확하게 수행하는 방법 및 그 장치를 제공한다. The present invention provides a method and apparatus for accurately and accurately performing status / alarm management and system time broadcasting of a ground position measuring system receiver. 다. 그 발명의 해결방법의 요지: All. The gist of the solution of the invention: 본 발명에서는 기존 TFCA(Time and Frequency Controller Assembly)보오드에서 처리하던 클럭의 발생과 분배를 GPSR 내에서 처리하도록 하여 이중화 기능을 보완하였으며, TFCA보오드내에서 상태와 알람 처리, TOD(Time Of Date)메세지 데이타의 시스템 시간 분리 및 방송을 담당하던 소프트웨어 블럭이 BCP(BTS Control Processor)내의 소프트웨어 블럭으로 옮겨지게 하여 GPSR(Global Positioning Receiver) 자체의 상태, 알람 관리와 시스템 시간 방송만을 하도록 단순화하였다. In the present invention, the redundancy function is complemented by processing the generation and distribution of the clock processed by the existing TFCA (Time and Frequency Controller Assembly) board in the GPSR, and the state and alarm processing and the TOD (Time Of Date) message in the TFCA board. The software block used for system time separation and broadcasting of data is moved to the software block in the BTS (BTS Control Processor), which simplifies only the GPSR (Global Positioning Receiver) itself, alarm management and system time broadcasting. 라. 발명의 중요한 용도: la. Important uses of the invention: PCS(Personal Communication Service)시스템 PCS (Personal Communication Service) System

Система для синхронной выборки и формирования импульсов истинного времени с использованием кодированного временного сигнала

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2006 105 009 (13) A (51) ÌÏÊ H04L 25/49 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006105009/09, 19.08.2004 (71) Çà âèòåëü(è): ØÂÅÉÒÖÅÐ ÈÍÄÆÈÍÈÐÈÍà ËÝÁÎÐÅÒÅÐÈÇ (US) (30) Êîíâåíöèîííûé ïðèîðèòåò: 20.08.2003 US 10/645,418 (43) Äàòà ïóáëèêàöèè çà âêè: 27.09.2007 Áþë. ¹ 27 (87) Ïóáëèêàöè PCT: WO 2005/020528 (03.03.2005) R U (54) ÑÈÑÒÅÌÀ ÄËß ÑÈÍÕÐÎÍÍÎÉ ÂÛÁÎÐÊÈ È ÔÎÐÌÈÐÎÂÀÍÈß ÈÌÏÓËÜÑΠÈÑÒÈÍÍÎÃÎ ÂÐÅÌÅÍÈ Ñ ÈÑÏÎËÜÇÎÂÀÍÈÅÌ ÊÎÄÈÐÎÂÀÍÍÎÃÎ ÂÐÅÌÅÍÍÎÃÎ ÑÈÃÍÀËÀ (57) Ôîðìóëà èçîáðåòåíè 1. Ñèñòåìà äë ñèíõðîííîé âûáîðêè àíàëîãîâûõ âõîäíûõ ñèãíàëîâ äë ìíîæåñòâà ýëåêòðîííûõ èçìåðèòåëüíûõ ïðèáîðîâ ñ èñïîëüçîâàíèåì êîäèðîâàííîãî âðåìåííîãî ñèãíàëà, ñîäåðæàùà ñôîðìèðîâàííûé âíåøíèì îáðàçîì êîäèðîâàííûé âðåìåííîé ñèãíàë, ïîäàâàåìûé íà ìíîæåñòâî ýëåêòðîííûõ èçìåðèòåëüíûõ ïðèáîðîâ, ïðèãîäíûé äë îáåñïå÷åíè òî÷íîé ñèíõðîíèçàöèè ãåíåðàòîðà èìïóëüñîâ èñòèííîãî âðåìåíè äë ýëåêòðîííûõ èçìåðèòåëüíûõ ïðèáîðîâ, ïðè ýòîì âðåìåííîé ñèãíàë ïåðåêðûâàåò çàðàíåå çàäàííûé ïåðèîä âðåìåíè; äåòåêòîð ôðîíòà, âûðàáàòûâàþùèé â îòâåò íà êîäèðîâàííûé âðåìåííîé ñèãíàë ïîñëåäîâàòåëüíîñòü èìïóëüñîâ íà îñíîâå ôðîíòîâ êîäèðîâàííîãî âðåìåííîãî ñèãíàëà; è áëîê ôàçîâîé àâòîïîäñòðîéêè ÷àñòîòû, âûðàáàòûâàþùèé âûõîäíîé ñèãíàë ñèíõðîíèçàöèè âûáîðêè, êîòîðûé ñôàçèðîâàí ñ óïîì íóòûìè èìïóëüñàìè íà âûõîäå äåòåêòîðà ôðîíòà òàê, ÷òî âûõîäíîé ñèãíàë ñèíõðîíèçàöèè âûáîðêè âîçíèêàåò â íà÷àëå êàæäîãî çàðàíåå çàäàííîãî ïåðèîäà âðåìåíè, ïðè÷åì ïîñëåäîâàòåëüíûå ñèãíàëû ñèíõðîíèçàöèè ðàâíîìåðíî ðàçíåñåíû íà èíòåðâàëå ìåæäó íà÷àëàìè ïîñëåäîâàòåëüíûõ çàðàíåå çàäàííûõ ïåðèîäîâ âðåìåíè, äë ñèíõðîíèçàöèè âûáîðêè äàííûõ â óïîì íóòîì ìíîæåñòâå ïðèáîðîâ. 2. Ñèñòåìà ïî ï.1, â êîòîðîé âðåìåííîé ñèãíàë âë åòñ ñèãíàëîì IRIG-B òî÷íîãî âðåìåíè. 3. Ñèñòåìà ïî ï.1, â êîòîðîé öåïü ôàçîâîé àâòîïîäñòðîéêè ÷àñòîòû ñèíõðîíèçèðóåòñ íà ÷àñòîòå 1 êÃö, à âûõîäíîé ñèãíàë ñèíõðîíèçàöèè âûáîðêè âë åòñ öåëûì êðàòíûì îò 1 Ñòðàíèöà: 1 RU A 2 ...

GPS receiver status / alarm management and system time broadcasting method and apparatus

System for correcting time scales of remote clock group

FIELD: data processing; clocks and other time meters.SUBSTANCE: invention relates to means of time synchronization and can be used in solving problems of correcting the time scales of a remote clock group relative to the time scale of the central clock. System for correcting the time scales of the remote clock group contains the central clock and the remote clock group associated with the central clock of data transmission channels. Each of these clocks contains a block of forming its own time scale, a block for receiving the time scale of navigation spacecraft and an associated time scale comparison block. In addition, the central clock contains a computing unit that performs the function of a calculator of corrections to the time scales of remote clocks, as well as input and output switches, as well as a block for selecting data on the magnitudes of mismatches of time scales, first and second inputs of which are connected, respectively, with an output of time scale comparison block, which is part of the central clock, and an output of the input switch, and an output is connected with an input of the computing unit. Inputs of the input switch are connected via corresponding data transmission channels to the outputs of the time comparison blocks of the respective remote clocks. Output of the computing unit is connected to an input of the output switch. Outputs of the output switch are connected via corresponding data transmission channels to the correcting inputs of the blocks for generating their own time scale of the respective remote clocks.EFFECT: technical result consists in reducing the influence of the drift factor of the board time scales of the navigation spacecraft on the accuracy of the correction carried out.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 688 452 C1 (51) МПК G04G 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G04G 7/00 (2018.08) (21)(22) Заявка: 2018122383, 18.06.2018 ...

Clock synchronization in a distributed system

A kind of punctual method of automatic device high-precision

本发明公开了一种自动装置高精度守时方法，具体包括以下几个步骤：FPGA在具备GPS授时脉冲时，对RTC脉冲进行频率和相位校正；利用校正后的RTC脉冲进行计数产生一个GPS授时脉冲频率和相位同步的中断信号；CPU在收到中断请求后对内部计数器插值平滑得到准确的纳秒时间信息；在GPS授时脉冲丢失后CPU利用插值平滑后的时间信息进行系统守时。本发明在不改变原来RTC电路拓扑的基础上，利用RTC脉冲进行守时，在降低设计成本的同时，又能满足电站二次自动化设备装置对于守时精度的要求。

Tracking method for tmboc signal and tracking apparatus for tmboc signal

A method of tracking a time multiplexed binary offset carrier (TMBOC) signal includes: a step in which a receiver receives a TMBOC signal; a step in which the receiver divides a subcarrier of the TMBOC signal into 12 partial subcarriers having the same cycle; a step in which the receiver generates 12 partial correlation functions by correlating each of the 12 partial subcarriers and the received TMBOC signal; a step in which the receiver generates a first correlation function by combining a first partial correlation function and a final partial correlation function among the 12 partial correlation functions; a step in which the receiver generates a second correlation function by combining a fifth correlation function and a sixth correlation function among the 12 partial correlation functions and the first correlation function; a step in which the receiver generates a third correlation function by combining the remaining partial correlation functions not used for generating the second correlation function among the 12 partial correlation functions and the second correlation function; and a step in which the receiver tracks a signal by using the third correlation function. The present invention is provided to remove a side peak from a TMBOC signal and generate an acute signal, which has a sharp signal component, at the same time.

Moment update the system, electronic equipment, clock and watch and program

提供电子设备(10)以及电子钟表(20)，其中，电子设备(10)具备：显示部(105)；时刻数据获取部(101)；控制部(102)，其根据当前时刻，将电子钟表(20)的指示时刻显示在显示部(105)上，且根据当前时刻与指示时刻之间的差分，计算时刻校正量；以及光源(103)，其向电子钟表(20)发送时刻校正量，电子钟表(20)具备：输入部(210)，其受理用于修正显示部(208)表示的时刻的操作输入；太阳能电池(201)，其从电子设备(10)接收时刻校正量；以及控制电路(202)，其根据时刻校正量，修正指针(2082)表示的时刻。

Atomic clock based on opto-electronic oscillator

発振器の発振周波数を原子周波数基準に安定化する周波数同期メカニズムを有する光−電子発振器。かかる発振器にささやき回廊モードの光共振器を用いて小型の原子時計を形成する。

Industrial controller with coordinated timing

A method for providing a standard coordinated time throughout spatially separated functional modules of an industrial controller employs a module operating as a time-master which transmits a coordinated time value to various dependent modules through communication modules. The particular time-master is determined by an arbitration process among potential masters which examines a time quality value, indicating the precision of the time-master's clock, and incorporated in the transmitted synchronization signal. Upon the loss of a master or the introduction of a new master, mastership is reallocated so that the master time value is provided from that module having the best time quality. Offset caused by "ripple through" of the time value through communication modules is minimized by summing to that time value as it traverses a communication module with a time quantity measuring the processing time of the communication module.

Method of scheduling spatially separated control events with an industrial controller

A coordinated system time is established for spatially separated components of an industrial control system using synchronizing messages transmitted over a communication link between those parts. Precisely coordinated actions may be obtained at separated components by the use of a time conditional command received by those components prior to a time of execution the command instructing the component to execute the command only when at execution time in the future has been reached. The coordinated system time may be used to time stamp received triggering events for use in coordinating subsequent actions based on those triggering events.

Protected clock synchronisation

FIELD: electrical engineering.SUBSTANCE: for single-stage transfer of a clock signal as per IEEE 1588 standard symmetrical and asymmetrical protection circuit. Clock signals of crucial or widely available devices in industrial automation systems connected to communication network are synchronised by means of synchronization message transfer by master clock generator, in particular one message of single-stage synchronisation as per IEEE 1588 standard with time stamp and receipt and evaluation of this message by slave clock generator. Before beginning of the planned time moment tsynchronising component or module of the master clock generator prepares or shapes synchronisation message that includes time stamp of the transfer and protects is before moment of transfer. Protection of synchronisation message is carries out by appropriate cryptographic means that allow at least identification of the time stamp in the slave clock generator, for example, by method of computation and sign assignment for check sum or hashing of the synchronisation message. Transfer of the protected synchronisation message is carried out at the planned moment of time.EFFECT: improved accuracy of clock synchronisation.8 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 487 382 (13) C1 (51) МПК G04G 7/00 (2006.01) H04L 12/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2012101763/08, 13.05.2011 (24) Дата начала отсчета срока действия патента: 13.05.2011 (72) Автор(ы): КИРРМАНН Хуберт (CH), ТУРНЬЕ Жан-Шарль (FR) (73) Патентообладатель(и): АББ РИСЕРЧ ЛТД (CH) R U Приоритет(ы): (30) Конвенционный приоритет: 09.06.2010 EP 10165325.1 (45) Опубликовано: 10.07.2013 Бюл. № 19 2 4 8 7 3 8 2 (56) Список документов, цитированных в отчете о поиске: EP 2148473 A1, 27.01.2010. RU 77527 U1, 20.10.2008. RU 2078401, 27.04.1997. RU 92275 U1, 01.03.2010. US 2009/0185501 A1, 23.07.2009. US 2009/0204811 A1, 13.08.2009. EP 1768328 A1, 28.03.2007. 2 4 8 ...

Internet of Things monitors asynchronous time service residual count synchronous averaging measurement method

本发明涉及物联网监测异步授时剩余计数同步启动测量方法。本发明对每个监测与采样点授不同的剩余计数时，以保证每个监测与采样点的计数器同时倒计数到0，保证授时成功的前提下也保证各个监测与采样点同时进行数据采样。而本发明不需要额外增加其他硬件，所以本发明的硬件成本几乎不发生变化。

Status / Alarm Management and System Time Sending Method and Apparatus of Ground Position Measuring System Receiver

가. 청구범위에 기재된 발명이 속한 기술분야: 지상위치측정시스템 수신기의 상태/알람관리와 시스템시간 방송 방법 및 그 장치 나. 발명이 해결하려고 하는 기술적 과제: 지상위치측정시스템 수신기의 상태/알람관리와 시스템시간 방송을 상세하고 정확하게 수행하는 방법 및 그 장치를 제공한다. 다. 그 발명의 해결방법의 요지: 본 발명에서는 기존 TFCA(Time and Frequency Controller Assembly)보오드에서 처리하던 클럭의 발생과 분배를 GPSR 내에서 처리하도록 하여 이중화 기능을 보완하였으며, TFCA보오드내에서 상태와 알람 처리, TOD(Time Of Date)메세지 데이타의 시스템 시간 분리 및 방송을 담당하던 소프트웨어 블럭이 BCP(BTS Control Processor)내의 소프트웨어 블럭으로 옮겨지게 하여 GPSR(Global Positioning Receiver) 자체의 상태, 알람 관리와 시스템 시간 방송만을 하도록 단순화하였다. 라. 발명의 중요한 용도: PCS(Personal Communication Service)시스템

A kind of underwater time service method and system based on sound field reciprocal theorem

本发明公开一种基于声场互易定理的水下授时方法及系统。授时方法应用于水下授时装置，水下授时方法包括：水面监控平台和深海运载器同时向对方发射授时声脉冲信号，并接收对方发送的授时声脉冲信号；测量水面监控平台发射授时声脉冲信号的时间以及水面监控平台接收到深海运载器发射的授时声脉冲信号的时间，记为第一时间间隔；测量深海运载器发射授时声脉冲信号的时间以及深海运载器接收到水面监控平台发射的授时声脉冲信号的时间，记为第二时间间隔；基于声场互易定理，根据第一时间间隔和第二时间间隔，计算水面监控平台和深海运载器的时间差；根据时间差对深海运载器的时钟进行授时。采用本发明的方法或者系统能够实现深海复杂环境的精确授时。

Random error estimation system and estimation method for synchronization of multiple digital electronic devices

本发明公开了一种多数字电子设备同步的随机误差估计系统的及其估计方法。步骤1：根据系统需求，确定随机误差需求；步骤2：选择元器件的型号；步骤3：计算由于频率变换操作引起的jitter而带来的随机误差T1；步骤4：计算由于多路复制操作引起的skew而带来的随机误差T2；步骤5：估算走线中同轴电缆引起的随机误差T3；步骤6：估算走线中射频连接器引起的随机误差T4；步骤7：估算走线中PCB布线引起的随机误差T5；步骤8：将步骤3‑步骤7中的随机误差T1‑T5直接相加，即为随机误差估计。用于解决在设计多设备同步的系统时，如何有效地为每个设计环节估计同步随机误差的问题，以保证时钟的同步随机误差在指标允许的范围之内。

Method and apparatus for synchronization of clocks

Clocks are synchronized using a reference clock in two possible ways. One method uses two-way communication between a reference clock and a moving clock. The other method uses one-way communication from the moving clock.

Clock synchronisation method and device therefor

Предлагаемые способ и устройство синхронизации часов относятся к технике связи и могут быть использованы в радиоинтерферометрии со сверхдлинными базами (РСДБ), а также в службе единого времени и частоты. Технической задачей изобретения является повышение достоверности дуплексной радиосвязи между наземными пунктами путем выполнения и автоматического поддержания равенства ω пр2 =ω г2 -ω г1 . Устройство, реализующее предлагаемый способ синхронизации часов, содержит стандарт 1 частоты и времени, первый 2.1 и второй 2.2 гетеродины, генератор 3 псевдослучайного сигнала, переключатель 4, первый 5 и второй 13 смесители, усилитель 6 первой промежуточной частоты, первый 7 и второй 12 усилители мощности, дуплексер 8, приемопередающую антенну 9, первый 10, второй 15, третий 32, четвертый 33 и пятый 34 клипперы, первое 11, второе 16, третье 35, четвертое 36 и пятое 37 буферные запоминающие устройства, усилитель 14 второй промежуточной частоты, первый 17, второй 38, третий 39 и четвертый 40 измерители задержек и их производных, усилитель 18 первой суммарной частоты, усилитель 19 второй суммарной частоты, первый 20, второй 21, третий 28 и четвертый 29 амплитудные детекторы, первый 22, второй 23, третий 30 и четвертый 31 ключи, первый 24, второй 25, третий 41 и четвертый 43 перемножители, логический элемент ИЛИ 42, первый 26, второй 27, третий 44 и четвертый 46 узкополосные фильтры, делитель 45 фазы на два, фазовый детектор 47 и инверсный усилитель 48. 2 н.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 670 334 C1 (51) МПК G04G 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G04G 7/00 (2006.01) (21)(22) Заявка: 2017121242, 16.06.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 22.10.2018 (56) Список документов, цитированных в отчете о поиске: RU 2583894 C2, 10.05.2016. US (45) Опубликовано: 22.10.2018 Бюл. № 30 2 6 7 0 3 3 4 R U 20020163466 A1, 07.11.2002. US 6473719 B1, 29.10.2002. RU ...

Time synchronization system and time synchronization method in train

감시 제어 장치끼리를 연결하는 차량간 네트워크 및 각 차량에 탑재되는 차재 기기와 각 감시 제어 장치를 연결하는 차량내 네트워크의 통신 기능을 활용하고, 계층 구조의 최상위에 위치되는 열차 시계국 및 계층 구조의 중위에 위치되는 차량 시계국을 감시 제어 장치 중으로부터 설정하고, 그 외의 기기는 계층 구조의 최하위에 위치되는 보정 정보 대기국으로서 설정한다. 열차 시계국은 임의로 취득한 시각 정보를 기준 시각으로 하여 자국의 시각 보정을 적절히 행하고, 차량 시계국은 열차 시계국으로부터 송신된 시각 보정 정보 메시지에 기초하여 자국의 시각 보정을 행하고, 보정 정보 대기국은 차량 시계국으로부터 송신된 시각 보정 정보 메시지에 기초하여 자국의 시각 보정을 행한다. It utilizes the communication functions of the inter-vehicle network that connects the supervisory control devices and the on-vehicle network that is mounted on each vehicle and the in-vehicle network that connects each supervisory control device. The vehicle clock station located at the median is set from among the monitoring control devices, and the other equipment is set as the correction information waiting station located at the lowest level of the hierarchical structure. The train clock station properly corrects its own time using the time information arbitrarily obtained as a reference time, and the vehicle clock station corrects its own time based on the time correction information message transmitted from the train clock station. Based on the time correction information message transmitted from the vehicle clock station, the time correction of the own station is performed.

Systems and methods for distributing a clock to communications devices

GPS로부터 도출된 글로벌 클록 또는 복수의 기지국들에 의해 획득된 동일한 클록으로 네트워크 요소들을 동기화시키기 위한 방법들이 개시된다. 글로벌 클록은 다양한 네트워크들의 제어기들에 분배되고, 그로부터 네트워크 액세스 디바이스들에 분배된다. 네트워크 액세스 디바이스는 또한, 다양한 배선 및 로컬 무선 네트워크들에 글로벌 클록을 분배하고, 그로부터 이들 네트워크들에 의해 서빙되는 사용자들에 분배된다. 일실시예에서, 사용자 기기는 간단한 클록 디시플리너로 로컬 클록을 글로벌 클록으로 조정할 수 있게 되어, 수렴된 통신 네트워크들에 걸쳐 신뢰할 수 있는 동기화를 유발한다. Disclosed are methods for synchronizing network elements with a global clock derived from GPS or the same clock obtained by a plurality of base stations. The global clock is distributed to the controllers of the various networks and is then distributed to the network access devices. The network access device also distributes the global clock to the various wires and local wireless networks and is then distributed to the users served by these networks. In one embodiment, the user equipment is able to adjust the local clock to a global clock with a simple clock decipherer, resulting in reliable synchronization across the converged communication networks.

Electronic watch and electronic equipment

本发明提供能够简化结构的电子钟表以及电子设备。手表(1)具备A按钮(6)、根据A按钮(6)的输入操作设定手表(1)的动作模式的模式设定部(32)、接收从GPS卫星发送的卫星信号的GPS装置(25)、控制GPS装置(25)接收卫星信号的接收控制部(33)和根据所接收的卫星信号修正内部时刻信息的时刻修正部(34)，模式设定部(32)根据持续操作A按钮(6)的输入持续时间来切换测时模式和测位模式而设定为动作模式，测时模式是根据接收来自1个以上的GPS卫星的卫星信号并根据接收到的卫星信号所包含的时刻信息来修正内部时刻信息，测位模式是接收来自3个以上的GPS卫星的卫星信号并根据接收到的卫星信号所包含的时刻信息以及位置信息来修正内部时刻信息。

Distributed system time synchronization including a timing signal path

A distributed system with a timing signal path for increased precision in time synchronization among distributed system clocks. A distributed system according to the present teachings includes a master clock coupled to a timing signal path and a set of slave clocks coupled to the timing signal path. The master clock includes means for generating a timing signal on the timing signal path in response to time events associated with the master clock. The slave clocks include means for adjusting their local time in response to the timing signal received via the timing signal path.

Clock management method and device for electricity consumption information acquisition system

本发明公开一种用电信息采集系统时钟管理方法及装置，包括电能表时钟对时步骤，该电能表时钟对时步骤的具体步骤包括：S1.用电信息采集系统定时获取台区中各电能表的时钟进行对时，查找出其中时钟误差超过预设范围的电能表，得到所有时钟超差电能表；S2.判断查找出的各时钟超差电能表的时钟误差大小，如果小于预设超差阈值，转入执行步骤S3，否则转入执行步骤S4；S3.通过集中器生成广播对时报文以对目标时钟超差电能表进行广播对时；S4.上报电能表时钟超差事件给主站，由主站对目标时钟超差电能表进行单表对时。本发明具有实现方法简单、成本低、能够实现电能表时钟的智能管理且时钟准确性及管理效率高等优点。

COMMUNICATION DEVICE AND METHOD FOR PRECISE DATE OF EVENTS

Control system for time correction

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

CENTRAL CLOCK

Horloge centrale à au moins deux boucles d'asservissement de phase dont les signaux de sortie sont sélectionnés par décision majoritaire. Un seule maître oscillateur MO est utilisé avec, par exemple, trois boucles PLLI-3 à comparateur numérique de phase entre la sortie f et l'entrée F et oscillateur commandé en tension OCT en fonction de l'erreur de phase. L'entrée F est appliquée via des circuits de logique IGC qui, sous le contrôle de circuits de décision MDC commandés par des détecteurs d'état des boucles (verrouillage de phase ou non), sélectionnent pour la boucle PLL2 le signal de sortie fl de PLLI ou celui du maître oscillateur f et, pour PLL3, le signal de sortie de PLL1 f1 ou de PLL2 f2. En l'absence d'entrée F, un commutateur FCC ouvre la boucle de façon que l'OCT fonctionne indépendamment à une fréquence définie. Application particulière aux circuits de commande de systèmes de commutation électronique. Central clock with at least two phase control loops whose output signals are selected by majority decision. A single master oscillator MO is used with, for example, three PLLI-3 loops with digital phase comparator between output f and input F and voltage controlled oscillator OCT as a function of the phase error. The input F is applied via logic circuits IGC which, under the control of MDC decision circuits controlled by state detectors of the loops (phase locked or not), select for the loop PLL2 the output signal fl of PLLI or that of the master oscillator f and, for PLL3, the output signal of PLL1 f1 or PLL2 f2. In the absence of an F input, an FCC switch opens the loop so that the OCT operates independently at a set frequency. Particular application to control circuits of electronic switching systems.

METHOD AND DEVICE FOR SYNCHRONIZING A LOCAL SYSTEM TO A PILOT TIME OR CLOCK BASE SYSTEM

Synchroniser for quartz watch with analogue display - has one conductive wheel which periodically operates synchronisation circuit

The quartz watch has an analogue electromechanical display with an electronic counter to memorise data and a synchronisation device to periodically synchronise the display with the ocunter. The synchronisation device includes a wheel (1) of the watch which periodically connects together two contacts (10,11) of the synchronisation circuit. In one preferred mode, the wheel (2) bears the minutes' hand (9). The wheel has five arms ( 2 to 6) one (2) of them being wider than the others. This arm (2) has a conductive surface. In front of the wheel (1) are placed two contact strips (10,11) whose end is bent in the shape of a V to form a contact point. When the minute hand (9) indicates the 60th minute, the contact strips (10,11) are connected together by the wheel arm (20).

SYNCHRONIZATION SYSTEM FOR DATERING MEASUREMENTS OF AN ONBOARD SENSOR RELATING TO A REFERENCE CLOCK

Système de synchronisation (SYN) pour dater des mesures d'un capteur (CPi) relativement à une horloge de référence (HR), comportant : - une unité principale (UP) comprenant : ○ un émulateur (EM) d'une constellation artificielle de satellites GPS ayant pour base temporelle une horloge de référence (HR), pour générer un signal principal (SgP) sur une fréquence GPS, ○ des moyens de traitement (TM) aptes à délivrer un signal radio (SgR) à partir du signal principal (SgP), aptes à transposer la fréquence GPS du signal principal (SgP) vers une fréquence radio (Fr) ○ des moyens d'envoi (EV) du signal radio (SgR) une unité secondaire (USi) positionnée à une distance (Di) de l'unité principale (UP), comprenant : ○ des moyens de réception (ERi) du signal radio (SgR) ○ des moyens de changement de fréquence (TFi) aptes à délivrer un signal exploitable (SgE) par un récepteur GPS ○ un récepteur GPS (RPi) comprenant : ▪ une horloge locale (HLi) ▪ des moyens d'asservissements (ASSi) aptes à décoder le signal exploitable (SgE) et à synchroniser l'horloge locale (HLi) sur l'horloge de référence (HR) ○ un capteur (CPi) apte à réaliser des mesures et dater lesdites mesures relativement à l'horloge locale (HLi) du récepteur (RPi). Synchronization system (SYN) for dating measurements of a sensor (CPi) relative to a reference clock (HR), comprising: - a main unit (UP) comprising: ○ an emulator (EM) of an artificial constellation of GPS satellites having a time reference base (HR) for generating a main signal (SgP) on a GPS frequency, ○ processing means (TM) capable of delivering a radio signal (SgR) from the main signal ( SgP), able to transpose the GPS frequency of the main signal (SgP) to a radio frequency (Fr) ○ sending means (EV) of the radio signal (SgR) a secondary unit (USi) positioned at a distance (Di) of the main unit (UP), comprising: radio reception means (ERi) (SgR); frequency change means (TFi) capable of delivering a usable signal (SgE) by a ...

SYNCHRONIZED CLOCK.

La présente invention concerne une horloge d'une très grande stabilité synchronisée sur un signal de synchronisation externe. L'horloge synchronisée reçoit plusieurs signaux de synchronisation externe (1,2) et comprend des moyens (DA,DR) pour élaborer une commande d'asservissement (8) associée à chacun des signaux de synchronisation externe. Elle comprend également une unité de commande (UC) qui produit le signal de commande (12) d'un générateur d'horloge (GH) par sélection d'une des commandes d'asservissement suivant des critères de qualité. The present invention relates to a very stable clock synchronized with an external synchronization signal. The synchronized clock receives several external synchronization signals (1,2) and comprises means (DA, DR) for developing a servo command (8) associated with each of the external synchronization signals. It also comprises a control unit (UC) which produces the control signal (12) of a clock generator (GH) by selecting one of the servo commands according to quality criteria.

CHRONOMETRY METHOD, CENTRALIZED MANAGEMENT SYSTEM USING THE SAME, AND ITS APPLICATION TO LEAK DETECTION IN A FLUID TRANSPORT NETWORK

LE POSTE CENTRAL DU SYSTEME DE GESTION TECHNIQUE CENTRALISEE COMPORTE DES MOYENS D'EMISSION D'UN SIGNAL QUASI PERIODIQUE A TOUTES LES STATIONS ELOIGNEES DU SYSTEME POUR LA SYNCHRONISATION DE CIRCUITS DE CHRONOMETRIE CH DE CES STATIONS. CES CIRCUITS CH COMPORTENT UNE HORLOGE 10 FOURNISSANT LE MEME RYTHME DE COMPTAGE A DEUX COMPTEURS 11, 12. LE PREMIER EST REMIS A ZERO PAR LE SIGNAL EMIS PAR LE CENTRE DE GESTION TANDIS QUE LE SECOND CONTINUE A COMPTER JUSQUA SA CAPACITE MAXIMUM. IL EST ALORS CHARGE AUTOMATIQUEMENT PAR LA VALEUR ATTEINTE PAR LE PREMIER COMPTEUR. CE SECOND COMPTEUR FOURNIT SUR COMMANDE DES DONNEES HORAIRES QUI SONT AFFECTEES AUX EVENEMENTS PRIS EN COMPTE PAR CETTE STATION, ET TRANSMISES AVEC LES INFORMATIONS RELATIVES A CES EVENEMENTS AU CENTRE DE GESTION. APPLICATION, NOTAMMENT, A LA DETECTION ET A LA LOCALISATION DE FUITES DANS UN RESEAU DE TRANSPORT DE FLUIDES. THE CENTRAL STATION OF THE CENTRALIZED TECHNICAL MANAGEMENT SYSTEM INCLUDES MEANS OF SENDING A QUASI PERIODIC SIGNAL TO ALL REMOTE STATIONS OF THE SYSTEM FOR THE SYNCHRONIZATION OF CHRONOMETRY CIRCUITS OF THESE STATIONS. THESE CH CIRCUITS INCLUDE A CLOCK 10 PROVIDING THE SAME COUNTING RATE TO TWO COUNTERS 11, 12. THE FIRST IS RESET TO ZERO BY THE SIGNAL EMITTED BY THE MANAGEMENT CENTER WHILE THE SECOND CONTINUES TO COUNT UP TO ITS MAXIMUM CAPACITY. IT IS THEN AUTOMATICALLY CHARGED BY THE VALUE REACHED BY THE FIRST COUNTER. THIS SECOND METER PROVIDES ON ORDERS HOURLY DATA THAT ARE AFFECTED TO THE EVENTS TAKEN INTO ACCOUNT BY THIS STATION, AND TRANSMITTED WITH THE INFORMATION RELATING TO THESE EVENTS TO THE MANAGEMENT CENTER. APPLICATION, IN PARTICULAR, TO THE DETECTION AND LOCATION OF LEAKS IN A FLUID TRANSPORT NETWORK.

Method of time scale synchronization

FIELD: radio engineering and communications. SUBSTANCE: invention relates to the field of radio engineering and can be used in order to create the synchronization systems for time scales of spatially separated objects. Result is achieved by means of using for creating the data channel the exact time information of meteor tracks that simultaneously scatter the signal forward to the point of the frequency and time keeper and reflect the signal back to the reference keeper point. Essence of the synchronization method is in the following operations. Time stamps are transmitted over a channel, which is created by meteor tracks, on which the signal carrying the time stamp information is scattered, forward, to the receiving point, and back to the receiver of the reference oscillator, which allows, on the basis of an estimate of the propagation time of the signal in the data channel, to generate a synchronizing timestamp of the reference oscillator taking into account the delay of the synchronizing stamp in the channel without using additional measurements. EFFECT: reduced volume of measurements during synchronization of the time scales of spatially separated time and frequency keepers along the meteoric radio channel. 1 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 662 642 C1 (51) МПК G04G 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G04G 7/02 (2006.01) (21)(22) Заявка: 2017126920, 26.07.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 26.07.2017 2 6 6 2 6 4 2 R U Адрес для переписки: 420008, Казань, ул. Кремлевская, 18, федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ), патентно-лицензионный отдел, И.А. Назмиеву (56) Список документов, цитированных в отчете о поиске: SU 1808135 A3, 07.04.1993. RU 2370898 C2, 20.10.2009. US 5119500 A1, 02.06 ...

Media converter for converting time synchronization signal transmission media

FIELD: information technology. SUBSTANCE: invention relates to devices for time synchronization. Invention solves the problem of converting the transmission media of synchronization signal coming via digital interfaces from external synchronization sources or from GLONASS, GPS satellite navigation systems to fiber-optic communication lines without time delays for conversion with the ability to convert a synchronization protocol. EFFECT: no time delays for conversion; increased degree of interference immunity of communication lines for the transmission of synchronization signals through the use of an optical data transmission medium, transmission of synchronization signals to at least two devices with an optical interface. 3 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 655 692 C1 (51) МПК G04G 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G04G 7/00 (2018.02) (21)(22) Заявка: 2017122897, 27.06.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 29.05.2018 (56) Список документов, цитированных в отчете о поиске: CN 103969771 A, 06.08.2014. US (45) Опубликовано: 29.05.2018 Бюл. № 16 (54) МЕДИАКОНВЕРТЕР ДЛЯ ПРЕОБРАЗОВАНИЯ СРЕДЫ ПЕРЕДАЧИ СИГНАЛОВ СИНХРОНИЗАЦИИ ВРЕМЕНИ (57) Реферат: Изобретение относится к устройствам, возможностью преобразования протокола обеспечивающим синхронизацию времени. синхронизации, повышение степени Изобретение решает задачу преобразования помехозащищенности линий связи для передачи среды передачи сигналов синхронизации, сигналов синхронизации за счет использования поступающих по цифровым интерфейсам от оптической среды передачи данных, обеспечение внешних источников синхронизации или от передачи сигналов синхронизации по крайней спутниковых навигационных систем ГЛОНАСС, мере двум устройствам с оптическим GPS в волоконно-оптические линии связи без интерфейсом. 2 з.п. ф-лы, 1 ил. временных задержек на преобразование с R U 2 6 5 5 6 9 2 6909834 B2, 21.06. ...

Multiple input frequency locked loop

A dual locked loop is disclosed comparing preferably a GPS signal with an E1 signal and the E1 signal with the output of the loop. The GPS signal is low pass filtered to provide a low pass filtered GPS versus E1 signal that is used as a calibration for a closed loop having a second low pass filter for filtering the comparisons of the E1 and the output signal. By appropriately selecting the filter parameters, the output stability can track the stability of the local oscillator driving the NCO for short term stability, the medium term stability of the E1 signal and the long term stability of the GPS signal.

Method of operation of a timepiece device

Unit time producing system

In an electronic timepiece, a system for producing a unit time signal with a high degree of frequency stability, composed of a low frequency oscillator, a high frequency oscillator of a high degree of frequency stability which is activated only during periodic short intervals, and means for producing a timebase signal which is an exact integral submultiple in frequency of the high frequency oscillator signal, by modifying the output signal from the low frequency oscillator on the basis of periodically recurring phase coincidence between the high and low frequency oscillator signals. Information on this phase variation is stored in digital form, and is utilized to correct the low frequency signal during periods when the high frequency oscillator is inactivated.

Clock synchronization in a distributed system

The present invention provides an improved clock synchronization algorithm for a distributed system intended for real time applications by performing at the same time an off-set correction and a clock read correction at each node of the distributed system. Expensive oscillators can be avoided and synchronization can be established faster and with higher precision.

Cluster and method and system for correcting avn system data display time error

本发明涉及混合动力汽车的集群和AVN系统的数据显示时间误差的修正方法及其系统，根据本发明的时间误差修正方法的特征是，对混合动力汽车上显示的数据和接收此数据在AVN上显示的数据之间显示时间上的误差进行修正，以根据AVN系统上显示的混合动力汽车的动力状态，正确识别混合动力汽车的实际动作状态。根据本发明，混合动力汽车的速度与模块通信实现同步化，从而修正现有集群和AVN系统之间数据显示上产生的误差，为驾驶员实时准确提供混合动力汽车的数据。尤其是，防止混合动力汽车的集群和AVN系统之间的数据显示上产生误差，使用户更加准确方便地实时确认混合动力汽车的动作状态。

Circuit for resetting time of timer

A circuit for resetting the time of a timer installed in an electrical appliance includes receiving means for receiving a broadcasting signal including a specific frequency signal, specific frequency detecting means for detecting the specific frequency signal from the receiving means, and counting means for counting the number of pulses detected by the specific frequency detecting means, thereby enabling the timer to be accurately reset every hour on the hour.

A balanced optical-radiofrequency phase detector

A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection by use of a differentially biased Sagnac-loop interferometer and synchronous detection. The phase-error signal from this balanced optical-RF phase detector, which is robust against drifts and photodetector nonlinearities, is used to regenerate low-jitter radiofrequency signals from optical pulse trains. Alternatively, the phase-error signal is used to generate a low-jitter optical pulse train, synchronized with a master radiofrequency signal or to synchronize multiple modelocked lasers with each other.

Time synchronizing method, device and system of master clock side and slave clock side in synchronous network

In the field of communications, a method, device, and system for synchronizing time of a master clock side and a slave clock side in a synchronous network are provided, which are designed to solve a technical problem of time synchronization in the synchronous network. The method for synchronizing time of a slave clock side in a synchronous network includes the following steps. A synchronization message borne in a first downlink frame is received. An entry indicating pulse is generated according to the received first downlink frame, in which a time delay between the entry indicating pulse and a framing byte in the first downlink frame is fixed. First time of the slave clock side is collected according to the entry indicating pulse. A follow-up message borne in a second downlink frame is received, in which the follow-up message carries first time when a master clock side sends the synchronization message. Local time is adjusted according to a difference between the first time of the master clock side and the first time of the slave clock side.

Time protocol based timing system for time-of-flight instruments

Presented herein are systems, methods, and computer-readable media for recording event times in particle detection scenarios. The systems, methods, and computer-readable media involve the identification of one facility device as a grandmaster clock among at least two facility devices of a facility device set, where the respective facility devices are selected from a facility device type set including a beam monitor; a neutron instrument; a neutron chopper; a nuclear reactor; a particle accelerator; a network router; and a user workstation. The system, method, and computer-readable medium also involve configuring the facility devices to synchronize a clock component with the grandmaster clock; and, upon detecting an event, retrieve from the clock component of the selected facility device an absolute event timestamp that is independent of event times of other events, and store a record of the facility event and the absolute event timestamp in the data store.

Method for the time-synchronized processing of data of a field device of process automation

Verfahren zur zeitsynchronisierten Verarbeitung von Daten eines Feldgerätes der Prozessautomatisierung, bei dem die Daten und/oder Datenänderungen zusammen mit einem internen Zeitstempel eines internen Zeitgebers des Feldgerätes in einem Speicher des Feldgerätes abgelegt werden, wobei bei einem Auslesen der Daten aus dem Feldgerät ein Gangunterschied dem internen Zeitgeber des Feldgerätes und einem Zeitgeber eines Bediengerätes, mit dem die Daten ausgelesen werden, ermittelt wird, die internen Zeitstempel um den Gangunterschied korrigiert und als korrigierte Zeitstempel mit den Daten abgelegt werden. Method for time-synchronized processing of data of a field device of process automation, in which the data and / or data changes are stored together with an internal timestamp of an internal timer of the field device in a memory of the field device, wherein in a readout of the data from the field device, a path difference to the internal Timer of the field device and a timer of an operating unit, with which the data are read, is determined, the internal timestamp corrected by the path difference and stored as a corrected timestamp with the data.

System and method for co-ordinating the actions of a plurality of devices via scheduling the actions based on synchronized local clocks

Mechanical-to-electrical energy converter

1. A mechanical-to-electrical energy converter which comprises : - an electrical energy generator (2; 30; 50) having a rotor (3) and means (6, 7; 40, 41, 7) for generating said electrical energy in response to rotation of said rotor (3) ; - means (8) for storing at least temporarily said electrical energy ; - a mechanical energy source (1) connected mechanically to said rotor (3) and able to generate a mechanical driving torque for driving said rotor (3) at a first speed greater than a predetermined set speed in the absence of any other influence ; - means (21, 22; 22'; 22"; 54, 55) for generating a periodic reference signal having a period equal to the ratio between a predetermined angle of rotation of said rotor (3) and said set speed ; - means (23 to 28; 23, 24', 25', 26 to 29; 23, 24", 25", 26, 27, 28"; 56, 59) for generating a control signal having a first and a second state ; and - means (11; 11') for electrically braking said rotor (3) able to respond to said first state of the control signal to cause the application to said rotor (3) of a braking torque opposed to said mechanical driving torque and imposing on said rotor (3) a second speed lower on average than said set speed and able to respond to said second state of the control signal to stop said application to the rotor (3) of said braking torque ; characterized in that said means (23 to 28; 23, 24', 25', 26 to 29; 23, 24", 25", 26, 27, 28"; 56, 59) for generating a control signal include means (23, 56) for putting said control signal into one of said states at each one of a plurality of first instants that follow each other periodically with a period equal to that of said reference signal, and means (24 to 28; 24', 25', 26 to 29; 24", 25", 26, 27, 28"; 59) for putting said control signal into the other of said states at second instants, each separated from the immediately preceding first instant by a time interval having a duration ...

Patent FR2192334A1

Circuit for resetting time of timer

Method for setting an on-board clock in a motor vehicle and associated setting device

L’invention propose un procédé de réglage d’une horloge embarquée (H) dans un véhicule automobile (V), ladite horloge fournissant un temps réel (T) pour des fonctions du véhicule, ledit véhicule (V) étant relié par une communication sans fil à un serveur de données (S), ledit procédé comprenant les étapes suivantes : Emission par le serveur (S) d’une séquence de valeurs consécutives (T1, T1, T2, T3, T4) de temps réel, séparées chacune entre elles par un intervalle de temps fixe (x), Réception par le véhicule des valeurs de temps réel décalées (T0’, T1’, T2’, T3’, T4’) par un temps de vol inconnu et variable entre l’émission et la réception, Pour chaque valeur de temps réel reçue : calcul d’une différence (ΔT1’, ΔT2’, ΔT3’, ΔT4’) entre une valeur de temps réel reçue à un instant donné, et une valeur de temps réel reçue à un instant précédent, calcul d’un délai (Δ1, Δ2, Δ3, Δ4) entre ladite différence ainsi calculée et l’intervalle de temps fixe (x), calcul d’un écart cumulé (ε1, ε2, ε3, ε4), consistant en la somme du délai calculé pour une valeur de temps reçue à un instant et une valeur de temps reçue à l’instant précédent, détermination du temps réel (T) pour régler l’horloge embarquée (H) en fonction dudit écart. Figure pour l’abrégé : Fig. 2 The invention proposes a method for adjusting an on-board clock (H) in a motor vehicle (V), said clock providing real time (T) for vehicle functions, said vehicle (V) being connected by wireless communication. wire to a data server (S), said method comprising the following steps: Transmission by the server (S) of a sequence of consecutive real-time values (T1, T1, T2, T3, T4), each separated from one another by a fixed time interval (x), Reception by the vehicle of the shifted real-time values (T0 ', T1', T2 ', T3', T4 ') by an unknown and variable flight time between transmission and reception, For each real time value received: calculation of a difference (ΔT1 ', ΔT2', ΔT3 ', ΔT4') ...

Time correction of an electronic clock

An electronic clock comprises a usual oscillator (4) and a more accurate oscillator (1). The usual oscillator (4) generates a first frequency (Fx) which causes the electronic clock to operate and the more accurate oscillator (1) generates a second frequency (Fo) which is used as a reference frequency. Referring to the second frequency, the first frequency (Fx) is measured by a frequency measurement circuit (3) and a deviation (D) of the first frequency from a design frequency (F D ) is calculated by a processor (6). According to the deviation, time correction of the electronic clock is performed. Therefore, even if an actual oscillation frequency of the usual oscillator (4) is not stable precisely, the accurate time correction can be achieved.

Electronic clock with generator driven by mechanical power source

본 발명에 따른 시계(1)는 전기기 변환기(3)의 회전자(3a)를 구동하는 주스프링(2)과 시간 표시 바늘(6)을 포함한다. 원하는 각위치로 회전자(3a)의 실제 각 위치를 조정하는 회로(7)는 변환기(3)에 의해 전기 에너지를 공급받는다. 시계(1)의 자율성을 증대시키기 위해서, 인슬레이빙(enslaving) 회로(7)는 변환기(3)에 의해 발생된 전기 에너지의 일부를 저장하는 장치(28)를 포함하고 회전자(3a)가 원하는 각위치에 대해 설정치 이상으로 감속될 때 변환기(3)로 구동 펄스(IM)를 가하기 위해서 저장된 전기 에너지를 사용하는 장치(21, 23-27)를 포함한다.

Sensing system and time synchronization method

在本发明中，数据采集终端从设备(2)在接收到伪分组时，向返回分组添加指示伪分组的接收时刻的时间戳和指示返回分组的发送时刻的时间戳，并且向数据采集终端主设备(3)发送该返回分组。数据采集终端主设备(3)在执行时间同步过程时向数据采集终端从设备(2)发送伪分组。数据采集终端主设备(3)在接收到返回分组时，基于伪分组的发送时刻和返回分组的接收时刻、以及从返回分组的时间戳获取的伪分组的接收时刻和返回分组的发送时刻，计算数据采集终端主设备(3)与数据采集终端从设备(2)之间的同步偏差时间和数据采集终端主设备(3)与数据采集终端从设备(2)之间的传播延迟时间。

Scheduling a second device by a first device

Eine unabhängige zweite Vorrichtung (V`) soll von einer ersten Vorrichtung (V) zeitlich präzise gesteuert werden können. Dazu wird zunächst ohne Wartezeit ein Signal zwischen beiden Vorrichtungen hin und her geschickt. Anschließend wird ein Signal erst nach einer gewissen Zeit nach Ankunft eines Erstsignals wieder zurückgeschickt. Aus diesen Messungen wird von der ersten Vorrichtung (V) eine Taktdauer der zweiten Vorrichtung bestimmt. Mit dieser zweiten Taktdauer (τ') kann die zweite Vorrichtung (V`) genau gesteuert werden. An independent second device (V`) should be able to be timed precisely by a first device (V). To do this, a signal is first sent back and forth between the two devices without waiting. A signal is then sent back only after a certain time after the arrival of an initial signal. From these measurements, the first device (V) determines a cycle time of the second device. With this second clock period (τ'), the second device (V`) can be precisely controlled.

Object-oriented communication protocol-based time synchronization method for electricity utilization acquisition terminal

本发明公开了一种基于面向对象通信协议的用电采集终端对时方法，具体包以下步骤：S1、集中器向待抄表的电能表发送采集指令，S2、记录电能表时钟的时间T2，S3、将电表时钟时间T2与发送时间T1进行求差，S4、若T1‑T2的差值是在±10S范围内，直接获取电能表读取时间T2时的电能读数W1，S5、若T1‑T2的差值不在±10S范围内，先获取电能表读取时间T2时的电能读数W2，S6、若差值＜前次抄表电能数值的1/3，上传报修系统，本发明涉及用电信息采集技术领域。该基于面向对象通信协议的用电采集终端对时方法，可实现通过面向对象通信协议进行简便灵活的操作,易于对模块参数进行在线修改，步骤简单，简洁方便，且高效，大大方便了人们进行用电采集。

Time scale computation system

An improved system for providing ensemble time from an ensemble of oscillators is provided. The improved system provides an ensemble time definition whose large number of possible solutions for an ensemble time are constrained to a limited number of solutions. In one embodiment, a substantially infinite number of solutions is constrained to a single solution.

Programmable timer

High-accuracy programmable timer with very low consumption characterised in that it uses a first oscillator 1 which operates continuously and oscillates at a very low frequency F1, and a second oscillator 2 which is set into operation only during short time intervals and oscillates at a much higher frequency F2. The first oscillator 1 is used as a clock and sends pulses periodically to a counter 6 while the second oscillator 2 serves for synchronisation and resets the frequency of the first oscillator. The combination of the two oscillators and a logic control system 3, 4, 5, 7 is capable of delivering a signal after a time predetermined by the filling of the levels of the counter 6. Application to horology or diverse timing systems for example for the self-ignition of mines or rockets.

Method for providing universal time in control device and control device

公开一种用于在控制设备中提供通用时间的方法，其中，通过控制设备的时钟发生器产生该通用时间，或者通过通信连接从至少一个外部单元接收该通用时间；将该通用时间直接地或作为至少两个时间戳发送给至少一个部件以求取时间偏差。此外，公开一种控制设备、一种计算机程序以及一种机器可读的存储介质。

System and method for providing time to a satellite positioning system (SPS) receiver from a networked time server

System and method for enabling signal acquisition in a satellite positioning system (SPS) when signals from SPS satellites are attenuated by the operating environment of a SPS receiver. A preferred embodiment comprises a communications server (for example, communications server 220 ) coupled to a SPS receiver (for example, SPS receiver 210 ) at one end and a time server (for example, time server 225 ) by a public network (for example, the Internet 230 ). Preferably, the communications server 220 is coupled to the Internet 230 via a wireless network to facilitate maximum mobility and flexibility. The communications server 220 queries the time server 225 for the current time and then provides the current time to the SPS receiver 210 . The SPS receiver 210 makes use of the current time to assist it in signal acquisition.

Node synchronization method and synchronization unit for distributed system for real-time processing

Device and method for synchronizing processes running in several units